Virtual Reality (VR) has the potential to provide qualitative social interactions. The literature explores the Social Presence and Co-presence notions, which we propose to pursue with the definition of the Koinos concept, to name the perceived quality of social interactions in a mediated environment…
Theoretical Issues in Ergonomics Science. 2026;1-14.
DOI : 10.1080/1463922X.2026.2622021
<div><p>Thanks to the phenomena of presence and embodiment, immersive virtual reality makes it possible to create situations that influence users' mental representations. This can deepen understanding of another person's perspective and foster compassion and motivation for prosocial behavior. In the…
Human Behavior and Emerging Technologies. 2026..
The gears used in aircraft engines are typically made from high-strength steels reinforced by thermochemical treatments (TCT). These treatments increase surface fatigue strength through microstructural modifications, enhancing hardness and adding compressive residual stresses. In some cases, the com…
International Journal of Fatigue. 2026;207:109495.
DOI : 10.1016/j.ijfatigue.2026.109495
<div><p>This study examines the effects of step-by-step attentional guidance during immersive virtual reality (VR) lesson. While such guidance can enhance task completion, it may simultaneously facilitate or impede learners' development of deep task understanding. In addition, the study evaluates th…
Journal of Interactive Learning Research. 2026..
Rock salt, owing to its viscoplastic behavior and structural integrity under high pressure, is a promising candidate for safe and large-scale underground energy storage. This study presents a comprehensive numerical framework for modeling the viscoplastic deformation of rock salt, accounting for bot…
Finite Elements in Analysis and Design. 2025;252(1)
DOI : 10.1016/j.finel.2025.104438
Polymer Testing. 2025;153:109019.
DOI : 10.1016/j.polymertesting.2025.109019
Mental workload overload is a major cause of human error in industrial tasks such as maintenance. Human errors can compromise not only system safety but also lead to high social and economic costs, reduce equipment productivity, and cause incidents, accidents, and fatalities. To this day, we do not …
Theoretical Issues in Ergonomics Science. 2025..
DOI : 10.1080/1463922X.2025.2568138
A novel strong partitioned coupling strategy is developed in order to address Fluid–Structure Interaction (FSI) problems. The Brinkman penalization method is adopted to model the deformable fluid–solid interface on a fixed Cartesian grid. Originally designed for single-phase flows and rigid bodies, …
Journal of Fluids and Structures. 2025;137:104364.
DOI : 10.1016/j.jfluidstructs.2025.104364
Nanoindentation tests are an effective experimental approach to characterize the effects on local mechanical properties of epoxy resins undergoing thermo-oxidative ageing. However, there is currently no physical model capable of accurately representing these effects. In this work, we propose a hybri…
Computational Materials Science. 2025;259:114166.
DOI : 10.1016/j.commatsci.2025.114166
Applications in Engineering Science. 2025;23:100240.
DOI : 10.1016/j.apples.2025.100240
Assessing mental workload is essential for optimizing the design of complex systems, particularly in aeronautical maintenance, where operators' activities serve as a crucial safety barrier to ensure optimal system safety levels. One of the roles of human factors in maintainability is, therefore, to …
Applied Ergonomics. 2025;129:104599.
DOI : 10.1016/j.apergo.2025.104599
Laser Powder Bed Fusion (L-PBF) additive manufacturing enables the production of complex-shaped parts with high mechanical resistance. Such components exhibit a multi-scale microstructure, internal, sub-surface, and surface defects, a rough surface finish and a residual stress gradient in the as-bui…
International Journal of Fatigue. 2025;201:109107.
DOI : 10.1016/j.ijfatigue.2025.109107
<div><p>The development of constitutive models usually relies on the framework of strain-gradient plasticity to consider the size and gradient effects that affect the thermomechanical behavior of crystalline materials. In this work, an alternative strategy, which fits into the category of strain-int…
Journal of the Mechanics and Physics of Solids. 2025;203:106236.
DOI : 10.1016/j.jmps.2025.106236
This article presents the architecture of MemorIA, an integrative system that combines existing AI technologies into a coherent educational framework for creating interactive historical agents, with the aim of fostering students' learning interest. MemorIA generates animated digital portraits of his…
Computer Animation and Virtual Worlds. 2025;36(3)
DOI : 10.1002/cav.70032
Hot-forged wheel bearing hubs are manufactured using a complicated fabrication process chain to obtain the desired microstructure and mechanical properties in different zones that experience varying local stress states. The different process steps modify the surface roughness and the residual stress…
Fatigue and Fracture of Engineering Materials and Structures. 2025;48:3353-3367.
DOI : 10.1111/ffe.14648
This critical review examines advances in preprocessing and remelting processes for aluminium alloy chip recycling, emphasizing pre-treatment and remelting techniques that improve both resource recovery and material quality. Pre-treatment strategies, particularly cleaning methods and compaction are …
International Journal of Material Forming. 2025;42:15.
DOI : 10.1007/s12289-025-01904-9
This work offers a detailed examination of the phase field approach for modeling brittle fracture, emphasizing its theoretical foundations, mathematical descriptions, and computational strategies. Central to our discussion is an in-depth analysis of strain energy decomposition methods integral to ph…
Advanced Modeling and Simulation in Engineering Sciences. 2025;12
DOI : 10.1186/s40323-025-00295-5
Technological developments have made Virtual Reality (VR) technologies accessible, and have democratized its use for industrial, cultural or entertainment purposes. VR can be seen as a unique medium: while being immersed together in a virtual environment (VE), people can feel the presence of each ot…
International journal of virtual reality. 2025;1(1):32-37.
This study investigates the effect of additive manufacturing process parameters on the surface characteristics and performances of titanium Ti6Al4V, used for orthopedic implants. Parts were manufactured by selective laser melting, using a variety of volumetric energy densities, ranging from 58 to 15…
International Journal of Advanced Manufacturing Technology. 2025;137(11-12):5487-5498.
DOI : 10.1007/s00170-025-15484-0
The way users interact with Virtual Reality (VR) environments plays a crucial role in shaping their experience when embodying an avatar. How avatars are perceived by users significantly influences their behavior based on stereotypes, a phenomenon known as the Proteus effect. The psychological concep…
IEEE Transactions on Visualization and Computer Graphics. 2025;1-11.
DOI : 10.1109/tvcg.2025.3549136
Virtual Reality (VR) sketching is a valuable tool for conceptual understanding, creativity, and design, but quality issues can hinder its adoption. To address this, we conducted a study involving 15 novices and 15 experts who sketched three chair models in static, mobile, and control conditions. The…
Design Studies. 2025;97:101298.
DOI : 10.1016/j.destud.2025.101298
The need to reduce fuel consumption and emissions is driving advances in aeroengine performance. Efficiency gains are limited by the capacity of the turbine material to withstand the high thermomechanical loads of the combustion process. Nickel-based alloy Udimet 720Li has emerged as a promising alt…
Materials & Design. 2025;252(113700)
DOI : 10.1016/j.matdes.2025.113700
<div><p>This study focuses on the evolution of the fatigue strength of Laser Powder Bed Fusion (L-PBF) produced Ti-6Al-4V as a function of the chemical etching finishing process. The aim is to identify the critical fatigue crack initiation mechanisms and the transitions between them in terms of the …
Fatigue and Fracture of Engineering Materials and Structures. 2024;47:4498-4515.
DOI : 10.1111/ffe.14392
Structural Health Monitoring (SHM) techniques are key to monitor the health state of engineering structures, where damage type, location and severity are to be estimated by applying sophisticated techniques to signals measured by sensors. However, very localized damage detection algorithms applied t…
Results in engineering. 2024;23:102389.
DOI : 10.1016/j.rineng.2024.102389
Assessment of a color measurement-based method for the characterization of polymer thermo-oxidation.
Epoxy resins are used in various applications where environmental factors can interact and degrade the material. Thermo-oxidation is one of the degradation processes that can lead to both mechanical and chemical changes. This work aims to present a technique for characterizing thermo-oxidative degra…
Polymer Degradation and Stability. 2024;229:110950.
DOI : 10.1016/j.polymdegradstab.2024.110950
Most commercial software used to simulate the injection molding process of semi-crystalline thermoplastic polymers do not explicitly take into account the polymer crystallization, which could lead to errors in the estimations of filling as well as warpage and shrinkage. This is mainly due to the com…
International Journal of Advanced Manufacturing Technology. 2024;133(11-12):5243-5270.
DOI : 10.1007/s00170-024-13961-6
As more of our lives are spent using electronic devices, it comes as a natural deduction that those digital tools could be used to maintain people’s health. Gamified exercise or exergames are indeed promising means to motivate the population to get physically active and even cognitively active if pa…
Human Behavior and Emerging Technologies. 2024;2024(1)
DOI : 10.1155/2024/2109977
Trajectory planning aims at computing an optimal trajectory through the minimization of a cost function. This paper considers four different scenarios: (i) the first concerns a given trajectory on which a cost function is minimized by a acting on the velocity along it; (ii) the second considers traj…
Advanced Modeling and Simulation in Engineering Sciences. 2024;11(1):1-19.
DOI : 10.1186/s40323-024-00266-2
Friction phenomena at the chip/tool/workpiece interfaces during machining of material impacts significantly the cutting process. In this article, the effect of friction conditions (dry, emulsion, cryogenic) on the tribological performance of uncoated tungsten carbide tools is investigated when machi…
Tribology International. 2024;195:109588.
DOI : 10.1016/j.triboint.2024.109588
In the present work, the impact of cyclic loading conditions on the accumulation of stored energy in an austenitic steel is investigated. For this purpose, in situ X-ray diffraction analyses were carried out to estimate the stored energy density from integral breadths. Specifically, uniaxial cyclic …
Metallurgical and Materials Transactions A. 2024;55(6):1932-1941.
DOI : 10.1007/s11661-024-07369-w
This paper deals with the effect of defect size and shape under high cycle fatigue for metallic alloys. A large simulation campaign based on a multiaxial fatigue criterion and a non-local approach is presented. A relative defect size based on a ratio between the defect size and a characteristic leng…
Theoretical and Applied Fracture Mechanics. 2024;131:104378.
DOI : 10.1016/j.tafmec.2024.104378
<p>Le concept de jumeau numérique offre une multitude d'applications et d'utilisations dans divers domaines. Tout d'abord, il permet de simuler et de tester des scénarios virtuels avant de les implémenter dans le monde réel. Cela peut être particulièrement utile dans le domaine de la conception et d…
La revue Forge et Fonderie. 2024;:4-10.
This paper describes a theory of surface Love waves propagating in lossy waveguides consisting of a viscoelastic layer deposited on a semi-infinite elastic substrate. The Zener model to describe the viscoelastic behavior of a medium is used. This simple model captures both the relaxation and retarda…
Sensors and Actuators: A. Physical. 2024;369:8.
DOI : 10.1016/j.sna.2024.115209
Knowing the thermo-mechanical history of a part during its processing is essential to master the final properties of the product. During forming processes, several parameters can affect it. The development of a surrogate model makes it possible to access history in real time without having to resort…
International Journal of Material Forming. 2024;17(16)
DOI : 10.1007/s12289-024-01812-4
Nowadays, numerical simulation, such as computational fluid dynamics (CFD), has become an essential tool for scientific investigation and analysis of complex systems in engineering allowing high-fidelity Navier-Stokes resolution for realistic turbulent flows which cannot be solved analytically. Howe…
Mechanics & Industry. 2024;25:31.
DOI : 10.1051/meca/2024023
Simulators have been used for a long time in industry. We identify three categories of use: training, design, and testing. We underline that for these three categories of uses, the two major areas of improvement are a better use of haptic devices but also of artificial intelligence.…
Computer. 2023;55-64.
DOI : 10.1109/MC.2023.3283311
This paper reports the results of an experimental investigation of graphene particle suspensions in lubricating oil, ethylene glycol and glycerol-based fluids. Graphene particles of different specific surface area show variation in the viscosity depending on the shear rate and the temperature. The l…
Journal of Thermal Analysis and Calorimetry. 2023;148(21):11455-11465.
DOI : 10.1007/s10973-023-12498-2
X-ray diffraction techniques are widely used to estimate stresses within polycrystalline materials. The application of these techniques requires the knowledge of the X-ray elastic constants relating the lattice strains to the stress state. Different analytical methods have been proposed to evaluate …
Journal of Applied Crystallography. 2023;56(5):1446-1455.
DOI : 10.1107/s1600576723006878
Titanium alloys, largely used for aeronautical applications, are difficult to machine. High cutting forces, chip serration and important tool wear reflect this poor machinability, limiting productivity. One way of improving the machinability of titanium alloys consists of controlling their microstru…
Journal of Materials Processing Technology. 2023;319:118054.
DOI : 10.1016/j.jmatprotec.2023.118054
Introduction: Gesture performance deficits are prevalent in schizophrenia patients and are strongly associated with poor social communication skills and community functioning, affecting their overall quality of life. Currently, video-recording technology is widely used in clinical settings to assess…
Frontiers in Psychiatry. 2023;14
DOI : 10.3389/fpsyt.2023.1191601
This article discusses the effect of machining assistance on the machinability and surface integrity of titanium and nickel-based alloys for turning operations. The presented results are based on a literature review of the principal experimental work published by the French research laboratories wit…
International Journal of Advanced Manufacturing Technology. 2023;131(2):647-661.
DOI : 10.1007/s00170-023-11440-y
In the present work, a framework for the development of constitutive models for metallic materials in a thermomechanical context is proposed. Such a framework provides some guidelines to deal with processes involving large temperature variations, which is typical of manufacturing operations or sever…
Mechanics of Materials. 2023;181:104637.
DOI : 10.1016/j.mechmat.2023.104637
The influence of a proof load, or an initial overload, on the fatigue resistance of welded structures is investigated in this study. Arc welded stiffeners made of S355 steel are considered and fatigue-tested in as-welded and proof-loaded conditions. X-ray diffraction analyses are carried out to eval…
International Journal of Fatigue. 2023;172:107604.
DOI : 10.1016/j.ijfatigue.2023.107604
In the present work, the general and well-known model reduction technique, PGD (Proper Generalized Decomposition), is used for parametric analysis of thermo-elasticity of FGMs (Functionally Graded Materials). The FGMs have important applications in space technologies, especially when a part undergoe…
Materials. 2023;16(4):1-23.
DOI : 10.3390/ma16041753
Nowadays, numerical models are one of the most widely used techniques to predict material performance subjected to different manufacturing processes. However, to obtain accurate predictions, these models require reliable input data from thermomechanical tests. Nevertheless, during the test performan…
International Journal of Heat and Mass Transfer. 2023;204
DOI : 10.1016/j.ijheatmasstransfer.2022.123747
Nonlocal strain gradient theory is widely used when dealing with micro-and nano-structures. In such framework, small-scale effects cannot be ignored. In this paper a model of radial vibration of an isotropic elastic nanosphere is theoretically investigated. The frequency equation is obtained from a …
Nanotechnology. 2023;34(11)
DOI : 10.1088/1361-6528/acab06
Virtual reality (VR) sketching has many advantages for product design and tends to be more and more used among designers and non-designers (end-users). Nevertheless, few studies have focused on the skills needed to use VR sketching for non-designers especially VR novices in VR software. This study f…
Design Science. 2023;9:e28.
DOI : 10.1017/dsj.2023.27
The use of aluminum-lithium alloys in aeronautics is an efficient solution for lightweight structures, but its machinability can cause increased tool wear. The cutting temperature is one of the most important parameters controlling the tool wear and the quality of machined surfaces. Therefore, its m…
Machining Science and Technology. 2023;27(5):556-576.
DOI : 10.1080/10910344.2023.2255238
Many composite manufacturing processes employ the consolidation of pre-impregnated preforms. However, in order to obtain adequate performance of the formed part, intimate contact and molecular diffusion across the different composites’ preform layers must be ensured. The latter takes place as soon a…
Polymers. 2023;15(6):1449.
DOI : 10.3390/polym15061449
Virtual reality (VR) provides users with the ability to substitute their physical appearance by embodying virtual characters (avatars) using head-mounted displays and motion-capture technologies. Previous research demonstrated that the sense of embodiment toward an avatar can impact user behavior an…
IEEE Transactions on Visualization and Computer Graphics. 2023;29(11):4328-4338.
DOI : 10.1109/TVCG.2023.3320225
It is commonly accepted that the more an Information and Communication Technology (ICT) is recent the more it is suitable for young people and unsuitable for older people. However, several facts suggest that this idea is no longer valid and will not be in the future. User-centered design methods are…
Journal of Ergonomics Studies and Research. 2023;2(1)
When long parts are machined in forged blanks, the variability of bulk residual stress (RS) fields leads to uncontrolled deformation after machining, requiring manual reshaping. An original hybrid digital twin of forged part is thus proposed to manage the bulk RS variability and reduce part distorti…
CIRP Annals - Manufacturing Technology. 2023;72(1):77-80.
DOI : 10.1016/j.cirp.2023.04.021
Nowadays, both text-based and 3D online applications rely on conversational agents and autonomous characters to interact with users. Previous experiments demonstrated that perceived agency, that is to say, one’s belief in interacting with a computer- or another human-controlled entity could impact s…
Advances in Human-Computer Interaction. 2022..
DOI : 10.1155/2022/9632119
The computational cost of high-fidelity injection molding simulations has been growing in the past years making it more and more challenging to use them for performing analyses such as optimizations or uncertainty quantification. Surrogate modeling offers a cheaper way to realize such studies and ha…
International Journal of Material Forming. 2022;15(6):2-19.
DOI : 10.1007/s12289-022-01717-0
Nowadays data is acquiring an indisputable importance in every field including engineering. In the past, experimental data was used to calibrate state-of-the art models. Once the model was optimally calibrated, numerical simulations were run. However, data can offer much more, playing a more importa…
Computers & Mathematics with Applications. 2022;127:12-24.
DOI : 10.1016/j.camwa.2022.09.026
Studies involving collaboration in groups are frequently carried out under symmetrical conditions, meaning that all team members have the same role at the same time. In Virtual Reality, symmetrical collaboration often seems attractive as it allows all participants to be included in the VR environmen…
Behaviour & Information Technology. 2022;1-9.
DOI : 10.1080/0144929X.2022.2127375
This study investigates the double-diffusive natural convection of the non-Newtonian Casson fluid in a square cavity based on the original viscoplastic stress model without simplification. Therefore, yield stress plays an essential role in understanding fluid behavior. The finite element approach pr…
International Journal of Mechanical Sciences. 2022;236:107754.
DOI : 10.1016/j.ijmecsci.2022.107754
The present work deals with the development of a framework dedicated to the construction of constitutive models with non-local internal variables. Such internal variables allow considering the impact of microstructural changes on the current state of a material point. Non-locality is introduced by c…
Continuum Mechanics and Thermodynamics. 2022;34(5):1173-1195.
DOI : 10.1007/s00161-022-01113-8
Innovation is made of different tasks from strategic positioning to the first phases of production. One of the main activities is the generation of ideas through different creativity phases. These creativity activities are carried out in numerous conditions and with different tools having more or le…
Digital Creativity. 2022;1-11.
DOI : 10.1080/14626268.2022.2082486
Innovation is made of different tasks from strategic positioning to the first phases of production. One of the main activities is the generation of ideas through different creativity phases. These creativity activities are carried out in numerous conditions and with different tools having more or le…
Digital Creativity. 2022;1-11.
DOI : 10.1080/14626268.2022.2082486
Aluminum alloys are widely used for structural parts in the aerospace industry. Those parts are usually machined from rolled plates or forged blanks, and heat treatments are carried out to reach the necessary mechanical properties. Forming and heat treatments induce residual stresses that generate d…
Procedia CIRP. 2022;108:687-692.
DOI : 10.1016/j.procir.2022.04.079
Ti-6Al-4V titanium is considered a difficult-to-cut material used in critical applications in the aerospace industry requiring high reliability levels. An appropriate selection of cutting conditions can improve the machinability of this alloy and the surface integrity of the machined surface, includ…
Journal of Manufacturing and Materials Processing. 2022;6(3):58.
DOI : 10.3390/jmmp6030058
This paper reports on the state of the art in the experimental and numerical investigations of cutting and machining processes. The contributions on the above-mentioned processes and published on the Proceedings of the European Scientific Association for material FORMing (ESAFORM) Conferences are hi…
International Journal of Material Forming. 2022;15(3)
DOI : 10.1007/s12289-022-01680-w
The a -> b phase transformation upon heating in the Ti-5553 alloy with lamellar-nodular bimodal microstructure was tracked in situ with high energy X-ray diffraction. Rapid heating at 10, 50 and 100 °C s-1 from room temperature to 1050 °C was tested. Phase transformation on heating was studied by…
Journal of Materials Science. 2022;57(9):5620-5633.
DOI : 10.1007/s10853-022-06959-6
Technological development offers new opportunities that could change design processes. The present study explores the possibilities of technologies like virtual reality and 3D scan in the furniture design process. For this purpose, a cocreation process with help of new technologies was carried out f…
Computer-Aided Design and Applications. 2022;19(5):868-878.
DOI : 10.14733/cadaps.2022.868-878
The present work focuses on the modelling of the fatigue behaviour of a 316L produced by laser powder bed fusion containing various defect populations : Lacks of fusion, corrosion pits and one electric discharge machined hemispherical defect. As shown in previous experimental studies, the crack lead…
Engineering Fracture Mechanics. 2022;276(B):17.
DOI : 10.1016/j.engfracmech.2022.108883
Creativity is key in the early phases of innovation processes. With the rapid evolution of technologies, designers now have access to various tools to support this activity. Virtual reality (VR) takes over multiple domains, especially during conception. However, is VR really facilitating creativity …
Frontiers in Virtual Reality. 2022;3:958223.
DOI : 10.3389/frvir.2022.958223
In the context of parametric surrogates, several nontrivial issues arise when a whole curve shall be predicted from given input features. For instance, different sampling or ending points lead to non-aligned curves. This also happens when the curves exhibit a common pattern characterized by critical…
Frontiers in Materials. 2022;9:904707.
DOI : 10.3389/fmats.2022.904707
In the automotive industry, building parametric surrogate models is a fundamental tool to evaluate, in real time, the performance of newly designed car components. Such models allow to compute any Quantity of Interest —QoI—, such as a specific safety protocol index, for any choice of material and/or…
Heliyon. 2022;8(12):e12397.
DOI : 10.1016/j.heliyon.2022.e12397
The present study investigates the effect of the high-speed milling (HSM), grinding and anodizing processes on the high cycle fatigue strength of the AA7050 aluminum alloy. These processes are systematically applied to certain aircraft components as specified by aeronautical standards, to attain a g…
International Journal of Advanced Manufacturing Technology. 2022;122(9-10):3903–3922.
DOI : 10.1007/s00170-022-10124-3
A domain decomposition technique combined with an enhanced geometry mapping based on the use of NURBS is considered for solving parametrized models in complex geometries (non simply connected) within the so-called proper generalized decomposition (PGD) framework, enabling the expression of the solut…
Advanced Modeling and Simulation in Engineering Sciences. 2022;9:2.
DOI : 10.1186/s40323-022-00216-w
A polycrystalline plasticity model, which incorporates the contribution of deformation twinning, is proposed. For this purpose, each material point is treated as a composite material consisting of a parent constituent and multiple twin variants. In the constitutive equations, the twin volume fractio…
Journal of Theoretical, Computational and Applied Mechanics. 2022;7562.
DOI : 10.46298/jtcam.7562
Inspired by the Do-It-Yourself (DIY) movement, the Do-It-Together (DIT) collaborative approach was successfully trialed in 2018, hence opening the door to the application of User Driven Innovation for realizing product individualization. In the meantime, other megatrends like digitization, social me…
Journal of Innovation Economics & Management. 2022..
Entropy. 2022;24(6):782.
DOI : 10.3390/e24060782
Two main problems are studied in this article. The first one is the use of the extrusion process for controlled thermo-mechanical degradation of polyethylene for recycling applications. The second is the data-based modelling of such reactive extrusion processes. Polyethylenes (high density polyethyl…
Polymers. 2022;14(4):800.
DOI : 10.3390/polym14040800
Inspired by the Do-It-Yourself (DIY) movement, the Do-It-Together (DIT) collaborative approach was successfully trialed in 2018, hence opening the door to the application of User Driven Innovation for realizing product individualization. In the meantime, other megatrends like digitization, social me…
Journal of Innovation Economics & Management. 2022;Prépublication(0):I132-XLII.
DOI : 10.3917/jie.pr1.0132
The proportion of the population who experience persecutory thoughts is 10–15%. People then engage in safety-seeking behaviours, typically avoiding social interactions, which prevents disconfirmatory experiences and hence paranoia persists. Here we show that persecutory thoughts can be reduced if pr…
Scientific Reports. 2021;11(1)
DOI : 10.1038/s41598-021-03373-x
This experiment was designed to investigate the potential contribution to the sense of embodiment of a wristband worn by the participants in both real and virtual environments. In addition, two virtual limb models were compared following a mixed between-within subjects design: an organic hand and a …
PRESENCE: Virtual and Augmented Reality. 2021;30:213-231.
DOI : 10.1162/pres_a_00389
Solutions of partial differential equations can exhibit multiple time scales. Standard discretization techniques are constrained to capture the finest scale to accurately predict the response of the system. In this paper, we provide an alternative route to circumvent prohibitive meshes arising from …
Advanced Modeling and Simulation in Engineering Sciences. 2021;8(26):1-22.
DOI : 10.1186/s40323-021-00211-7
The use of mesh-based numerical methods for a 3D elasticity solution of thick plates involves high computational costs. This particularly limits parametric studies and material distribution design problems because they need a large number of independent simulations to evaluate the effects of materia…
Materials. 2021;14(21):6660.
DOI : 10.3390/ma14216660
A promising advance of bioengineering consists in the development of micro-nanoparticles as drug delivery vehicles injected intravenously or intraarterialy for targeted treatment. Pro cient functioning of drug carries is conditioned by a reliable prediction of pharma- cokinetics in human as well as …
Journal of Mechanics in Medicine and Biology. 2021;21(8)
DOI : 10.1142/S0219519421500627
Corrosive environments are known to be detrimental to the mechanical strength of metallic alloys. In the case of 316L stainless steel, the main corrosion mechanism observed is pitting, which leads to localized rough defects. As for other materials submitted to cyclic loadings and prone to pit, corro…
International Journal of Fatigue. 2021;155:106552.
DOI : 10.1016/j.ijfatigue.2021.106552
Space separation within the Proper Generalized Decomposition—PGD—rationale allows solving high dimensional problems as a sequence of lower dimensional ones. In our former works, different geometrical transformations were proposed for addressing complex shapes and spatially non-separable domains. Eff…
Advanced Modeling and Simulation in Engineering Sciences. 2021;8(1)
DOI : 10.1186/s40323-021-00208-2
The effect of shear flow on spherical nanoparticles (NPs) migration near a liquid–liquid interface is studied by numerical simulation. We have implemented a compact model through which we use the diffuse interface method for modeling the two fluids and the molecular dynamics method for the simulatio…
Entropy. 2021;23(9):1143.
DOI : 10.3390/e23091143
X-Light is an open-source software that is written in Python with a graphical user interface. X-Light was developed to determine residual stress by X-ray diffraction. This software can process the 0D, 1D and 2D diffraction data obtained with laboratory diffractometers or synchrotron radiation. X-Lig…
Journal of Applied Crystallography. 2021;54(4):1244-1251.
DOI : 10.1107/S160057672100618X
The dynamic viscosity and rheological properties of two different non-aqueous graphene nano-plates-based nanofluids are experimentally investigated in this paper, focusing on the effects of solid volume fraction and shear rate. For each nanofluid, four solid volume fractions have been considered ran…
Entropy. 2021;23(8):979.
DOI : 10.3390/e23080979
Healthcare simulators are learning environments that offer many training opportunities. The integration of expressive virtual patients in these simulators encourages the exchanges and provokes emotional reactions in the learner, which promotes memorization and learning. Based on these elements, we a…
International Journal of Human-Computer Interaction. 2021..
DOI : 10.1080/10447318.2021.1938387
Finite Element Modelling used to predict machining outcomes needs to be supplied with the appropriate material thermomechanical properties which are obtained by specific testing devices and methodologies. However, these tests are usually not representative of the extreme conditions achieved in machi…
International Journal of Mechanical Sciences. 2021;198:106397.
DOI : 10.1016/j.ijmecsci.2021.106397
The study of artificial microparticles (capsules and vesicles) has gained a growing interest with the emergence of bioengineering. One of their promoting applications is their use as therapeutic vectors for drug delivery, when capsules and vesicles release their capacity in a targeted environment. T…
J Biomech Eng. 2021..
DOI : 10.1115/1.4049955
Love waves propagation in a viscoelastic waveguide loaded on its surface with viscoelastic fluids of finite thickness is investigated in this paper. The Maxwell and Kelvin-Voigt constitutive equations are employed in order to describe the fluid viscoelasticity. By solving the equations of motion in …
Applied Mathematical Modelling. 2021;96
DOI : 10.1016/j.apm.2021.03.037
Numerous studies have shown a beneficial effect of exposing people to natural landscapes and plants on their well being and attentional functioning. The aim of the present study was to evaluate the effects of a natural virtual environment on creativity in a task consisting of sketching ideas of crea…
Thinking Skills and Creativity. 2021;11.
The field of Virtual Reality has been developing at a steady pace, and VR is finding new uses as a support for creative tasks. The objective of this study is to propose a theoretical model describing the links between user experience and creativity. Pre-existing theoretical links have been identifie…
Digital Creativity. 2021;9.
DOI : 10.1080/14626268.2021.1915339
Vibration characteristics of elastic nanostructures embedded in fluid medium have been used for biological and mechanical sensing and also to investigate materials and mechanical properties. An analytical approach has been developed in this paper to accurately predict toroidal vibrations of an elast…
Comptes Rendus. Mécanique. 2021;349(1):179-188.
DOI : 10.5802/crmeca.79
Weld toes and weld roots of continuously welded structures subjected to cyclic loading are critical zones in terms of the fatigue resistance. The finite element method coupled with a fatigue criterion is commonly used to ensure the correct sizing and fatigue design of welded structures. However, wel…
Engineering Failure Analysis. 2021;124:105280.
DOI : 10.1016/j.engfailanal.2021.105280
Most commercial softwares simulating casting process use a scalar field to quantify the shrinkage on final parts. The repartition of this scalar is used to localize shrinkage in the part. In this work, the objective is to use a new approach to predict morphological information about size and shape o…
International Journal of Material Forming. 2021;14(5):885-899.
DOI : 10.1007/s12289-020-01602-8
The description of a physical problem through a model necessarily involves the introduction of parameters. Hence, one wishes to have a solution of the problem that is a function of all these parameters: a parametric solution. However, the construction of such parametric solutions exhibiting localiza…
Mathematics and Computers in Simulation. 2021;194:36-63.
DOI : 10.1016/j.matcom.2021.11.010
Despite the prevalence of machining, tools and cutting conditions are often chosen based on empirical databases, which are hard to be made, and they are only valid in the range of conditions tested to develop it. Predictive numerical models have thus emerged as a promising approach. To function corr…
Metals. 2021;11(8):1154.
DOI : 10.3390/met11081154
The finite element modeling is significantly dependent on the accurate prediction of the material behavior. In order to increase the accuracy of numerical simulations, a new phenomenological model is proposed in this study. Its mathematical formulation allows suitable predictions of the Ti6Al4V sens…
International Journal of Advanced Manufacturing Technology. 2021;116(11-12):3933-3951.
DOI : 10.1007/s00170-021-07753-5
The mechanical response of polycrystalline materials to an externally applied load and their in-service performance depend on the local load partitioning among the constituent crystals. In hexagonal close-packed polycrystals such load partitioning is significantly affected by deformation twinning. H…
Communications Materials. 2021;2(1):9-1-9-11.
DOI : 10.1038/s43246-020-00105-y
Effective collaboration in immersive virtual environments requires to be able to communicate flawlessly using both verbal and non-verbal communication. We present two experiments investigating the impact of facial anthropomorphism on the sense of body ownership, avatar attractiveness, social presenc…
Computers and Graphics. 2021..
DOI : 10.1016/j.cag.2021.08.011
The present work focuses on the simulation of the heat treatment applied after printing of Ti-6Al-4V parts. The numerical tool aims at predicting the influence of heat treatment conditions (e.g. holding time, temperature) on the residual stress field and the distortions for SLM produced parts. The n…
Additive Manufacturing. 2020;39:101766.
DOI : 10.1016/j.addma.2020.101766
Numerical simulations and parametric studies of notched rectangular specimens subjected to dynamic tensile loads were performed. The simulations were based on two-dimensional finite element analysis to predict the brittle fracture path using the phase-field approach. The parametric studies investiga…
Comptes Rendus. Mécanique. 2020;348(8-9):729-744.
DOI : 10.5802/crmeca.52
A generalized analytical approach for the propagation of Bleustein–Gulyaev wave in a piezoelectric material loaded on its surface with a viscoelastic fluid is established in this paper. The Bleustein–Gulyaev waveguide surface is subjected to various glycerol concentrations. The Maxwell and Kelvin–Vo…
Wave Motion. 2020;101
DOI : 10.1016/j.wavemoti.2020.102695
Finite Elements in Analysis and Design. 2020;177:103419.
DOI : 10.1016/j.finel.2020.103419
Different variants of brainstormings and brainwritings exist and are regularly used in companies. Several phenomena of social influence in the idea generation stage have been highlighted. The hypothesis of this research was that under specific conditions, social influence biases the idea selection s…
Thinking Skills and Creativity. 2020;37:100691.
DOI : 10.1016/j.tsc.2020.100691
Many studies have shown that physical activity, especially walking, tends to stimulate certain cognitive functions, including divergent creativity. The objective of this study was to understand whether some of this gain comes from the perception of movement, and not merely physical activity itself. …
Thinking Skills and Creativity. 2020;9.
DOI : 10.1016/j.tsc.2020.100661
A generic methodology to deal with the mechanics of beams and shafts with cracks is presented. The elastic energy of the system under static loading is written in a comprehensive manner to remarkably reduce the 3D computations indispensable to the identification of the crack breathing mechanism. Wit…
International Journal for Numerical Methods in Engineering. 2020;121(15):3362-3381.
DOI : 10.1002/nme.6361
Designing useful emerging technologies (e.g., Virtual Reality) needs that multidisciplinary teams composed of engineers, graphic designers and ergonomists. These designers with heterogeneous and various backgrounds have to dialog together to satisfy users’ needs in the software design. This depends …
International journal of virtual reality. 2020;20(1):48-71.
DOI : 10.20870/IJVR.2020.20.1.2924
It has been demonstrated that virtual reality (VR) exposure can afect the subjective experience of diferent situations, cognitive capabilities or behavior. It is known that there is a link between a person’s physiological state and their psychological self-report and user experience. As an immersive…
Virtual Reality. 2020;17.
DOI : 10.1007/s10055-020-00429-7
This study presents a user test in order to ascertain the advantages and disadvantages of three different text input methods in immersive virtual environment: individual Speech-to-Text, collective Speech-to-Text and a virtual keyboard named Drum-Like Keyboard. We measured participants’ user experien…
International Journal of Design and Innovation Research. 2020;1-12.
Vibration characteristics of elastic nanostructures embedded in fluid medium have been used for biological and mechanical sensing, and also to investigate the materials mechanical properties. The fluid medium surrounding the nanostructure is typically modeled as a Newtonian fluid. A novel approach b…
Archive of Applied Mechanics. 2020..
DOI : 10.1007/s00419-020-01674-7
The model of Johnson and Cook, which includes a viscoplastic flow rule and a damage criterion, is widely used to describe the mechanical behaviour of metallic materials subjected to severe loading conditions, such as those encountered during fabrication operations or impact. This model has been buil…
Mechanics of Materials. 2020;143:103340.
DOI : 10.1016/j.mechmat.2020.103340
Because of its excellent properties, such as good corrosion resistance, high specific strength and important ductility, the AA5383 aluminum alloy is largely employed for naval applications. In this work, the mechanical behavior of the AA5383 alloy at elevated temperatures, which is an important aspe…
Journal of Materials Processing Technology. 2020;281:116609.
DOI : 10.1016/j.jmatprotec.2020.116609
The development of fatigue damage in metallic materials is a complex process influenced by both intrinsic (e.g. texture, defects) and extrinsic (e.g. loading mode, frequency) factors. To better understand this process, some efforts have been made to develop microstructure-sensitive models that consi…
Philosophical Magazine. 2020;100(8):955-981.
DOI : 10.1080/14786435.2020.1713412
Understanding the deformation mechanisms of hexagonal close-packed (HCP) polycrystals at the grain scale is crucial for developing both macro and micro scale predictive models. Slip and twinning are the two main deformation mechanisms of HCP polycrystals at room temperature. In this paper, the devel…
Acta Materialia. 2020;196:733-746.
DOI : 10.1016/j.actamat.2020.07.010
This paper analyzes the ability of different machine learning techniques, able to operate in the low-data limit, for constructing the model linking material and process parameters with the properties and performances of parts obtained by reactive polymer extrusion. The use of data-driven approaches …
Fluids. 2020;5(2):94.
DOI : 10.3390/fluids5020094
The numerical analysis, based on the finite element modeling (FEM), presents nowadays an efficient computational tool. It allows a better understanding of several thermo-mechanical phenomena involved during the machining process. However, its reliability heavily depends on the accurate definition of…
Machining Science and Technology. 2020;24(4):509-543.
DOI : 10.1080/10910344.2019.1698606
Procedia Structural Integrity. 2019;19:566-574.
DOI : 10.1016/j.prostr.2019.12.061
Procedia Structural Integrity. 2019;19:719-728.
DOI : 10.1016/j.prostr.2019.12.078
The aim of this article is to propose a design methodology for the production of parts in additive manufacturing (AM). The AM process allows new features (e.g., multi-material, fixed assemblies, complex shapes), and this paradigm shift requires the accompaniment of designers to take account of these…
Mechanics & Industry. 2019;20(6):608.
DOI : 10.1051/meca/2019040
A novel analytical investigation of circumferential (i.e. torsional) wave propagation in long anisotropic cylindrical rod (waveguide), surrounded by a viscoelastic fuid is proposed. The material is transversely isotropic, with its symmetry axis coincident with the axial axis of the cylindrical rod. …
SN Applied Sciences. 2019;1(7):1--7.
A novel approach based on the exact theory has been developed to accurately predict the behavior of surface Love wave propagating in elastic waveguide loaded on its surface with a viscoelastic fluid. A detailed study was conducted by varying key parameters such as operating frequency, waveguide and …
Sensors and Actuators A: Physical. 2019;291:188-195.
The first part of this paper presents a theoretical model, named UX-FFE, which combines a user eXperience (UX) approach with an upstream innovation process. The main interest of this UX-FFE model is that it allows to evaluate the social aspect of the upstream innovation process, which may be detrime…
International Journal of Services Operations and Informatics. 2019;10(1):17-42.
This study presents the second phase of a series of experiments investigating the impact of avatar visual fidelity on the sense of embodiment and users' behavior in immersive virtual environments. Our main focus concerns the similarity between users and avatars, a factor known as truthfulness. Our e…
Frontiers in Robotics and AI. 2019;6
The present work aims at proposing a new methodology for learning reduced models from a small amount of data. It is based on the fact that discrete models, or their transfer function counterparts, have a low rank and then they can be expressed very efficiently using few terms of a tensor decompositi…
Comptes Rendus. Mécanique. 2019;347(11):780-792.
DOI : 10.1016/j.crme.2019.11.003
In this work, a fully automated adaptive remeshing strategy, based on a tetrahedral element for 3D metal forming processes, was proposed in order to solve problems associated with the severe mesh distortion that occurs during the computation. The main idea is to use the h-type adaptive mesh in combi…
International Journal of Material Forming. 2019;12(3):411–428.
DOI : 10.1007/s12289-018-1425-4
Service prototyping is an innovative iterative process envisioned to enhance the service development process while refining the anticipated service experience. Immersive technologies, such as: Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR), in service prototyping have the poten…
International Conference on Engineering. 2019;9.
DOI : 10.1109/ICE.2019.8792566
Solutions of partial differential equations could exhibit a multiscale behavior. Standard discretization techniques are constraints to mesh up to the finest scale to predict accurately the response of the system. The proposed methodology is based on the standard proper generalized decomposition rati…
International Journal for Numerical Methods in Engineering. 2019;120(6):727-747.
DOI : 10.1002/nme.6154
The present work aims at performing a molecular dynamics modeling of suspensions composed of flexible linear molecules. Molecules are represented by a series of connected beads, whose dynamics is governed by three potentials: the extension potential affecting the elongation of segments connecting co…
Comptes Rendus. Mécanique. 2019;347(11):743-753.
DOI : 10.1016/j.crme.2019.11.001
Compressed sensing is a signal compression technique with very remarkable properties. Among them, maybe the most salient one is its ability of overcoming the Shannon–Nyquist sampling theorem. In other words, it is able to reconstruct a signal at less than 2Q samplings per second, where Q stands for …
Computational Mechanics. 2019;64(5):1259-1271.
DOI : 10.1007/s00466-019-01703-5
The aim of this study is to understand the impact of periodic surface micro-geometry patterns (obtained by High Speed Machining process) on the fatigue behavior of the AA7050 aluminium alloy and to define a proper defect acceptability criterion. It must be able to account for a large range of surfac…
International Journal of Fatigue. 2018;116:473-489.
DOI : 10.1016/j.ijfatigue.2018.06.048
Polycrystalline elasto-plasticity models provide a general framework for investigating the effect of microstructural heterogeneities (e.g. grains, inclusions, pores) on the high cycle fatigue behavior of metallic materials. In this work, continuum damage mechanics is used to construct a set of const…
International Journal of Damage Mechanics. 2018;838-856.
This work investigates the effect of artificial surface defects on the fatigue limit of a 7050 Aluminum alloy (AlZn6CuMgZr). A large fatigue testing campaign under fully reversed plane bending loading is undertaken on specimen with artificial surface hemispherical defects. The defect number was vari…
International Journal of Fatigue. 2018;110:81-94.
DOI : 10.1016/j.ijfatigue.2018.01.012
This study aims at investigating numerically the Rayleigh-Bénard Convection (RBC) in viscoplastic fluids. A Casson fluid is considered in a bidimensional square cavity heated from below. The effects of the dimensionless yield stress, the Bingham number Bn, on the heat transfer and motion is investig…
International Journal of Thermal Sciences. 2018;127:79-90.
DOI : 10.1016/j.ijthermalsci.2018.01.016
This work presents a theoretical method for surface love waves in poroelastic media loaded with a viscous fluid. A complex analytic form of the dispersion equation of surface love waves has been developed using an original resolution based on pressure–displacement formulation. The obtained complex d…
Journal of Applied Mechanics. 2018;85(5):1-7.
The main objective of this study is to investigate uncoated tungsten carbide tool wear mechanisms for high-pressure waterjet machining of the Ti555-3 titanium alloy. A comparative study has been undertaken (i.e. conventional versus assisted machining) based on numerous experimental tests. These test…
International Journal of Advanced Manufacturing Technology. 2018;96(1-4):845-856.
DOI : 10.1007/s00170-018-1661-2
This article presents an efficient numerical strategy to simulate the damage in composite laminates under low velocity impact. The proposed method is based on a separated representation of the solution in the context of the Proper Generalized Decomposition (PGD). This representation leads to an impo…
Computers & Structures. 2018;199:34-45.
DOI : 10.1016/j.compstruc.2018.01.012
The ability to successfully conduct radical innovations is mandatory for mature industrial companies that want to remain competitive in the global market. This ability relies on several ingredients, namely: (1) the structuring of the innovation process; (2) managerial principles; (3) methodological …
Artificial Intelligence for Engineering Design, Analysis and Manufacturing. 2018;1-16.
DOI : 10.1017/S0890060419000118
The numerical modelling of the behaviour of materials at the microstructural scale has been greatly developed over the last two decades. Unfortunately, conventional resolution methods cannot simulate polycrystalline aggregates beyond tens of loading cycles, and they do not remain quantitative due to…
Comptes Rendus. Mécanique. 2018;20.
There are increasing new advances in virtual reality technologies as well as a rise in learning virtual environments for which several studies highlighted the pedagogical value, knowledge transfer, and learners’ engaged-behaviors. Moreover, the notion of user experience is now abundant in the scient…
Advances in Human-Computer Interaction. 2018;2018:7827286.
DOI : 10.1155/2018/7827286
When addressing the flow of concentrated suspensions composed of rods, dense clusters are observed. Thus, the adequate modelling and simulation of such a flow requires addressing the kinematics of these dense clusters and their impact on the flow in which they are immersed. In a former work, we addr…
Continuum Mechanics and Thermodynamics. 2018..
DOI : 10.1007/s00161-018-0659-1
Purpose This paper aims to present a new methodology to optimize the support generation within the FDM process. Design/methodology/approach Different methods of support generation exist, but they are limited with regards to complex parts. This paper proposes a method dedicated to support generation,…
Rapid Prototyping Journal. 2018;24(1):69-79.
DOI : 10.1108/RPJ-04-2016-0055
Describing the orientation state of the particles is often critical in fibre suspension applications. Macroscopic descriptors, the so-called second-order orientation tensor (or moment) leading the way, are often preferred due to their low computational cost. Closure problems however arise when evolu…
Computer Modeling in Engineering and Sciences. 2018;117(3):367-386.
DOI : 10.31614/cmes.2018.04278
Les sentiments de présence et d’incarnation sont deux dimensions centrales de l’expérience utilisateur en environnement virtuel immersif. Suite à une revue de littérature portant sur ces deux concepts, nous en proposons une articulation théorique au sein d’un méta-modèle « Présence – Incarnation ». …
De la présence à l’incarnation: proposition d’un méta-modèle pour la réalité virtuelle. 2018;7(1):94-114.
Sparse model identification by means of data is especially cumbersome if the sought dynamics live in a high dimensional space. This usually involves the need for large amount of data, unfeasible in such a high dimensional settings. This well-known phenomenon, coined as the curse of dimensionality, i…
Complexity. 2018;2018:1-11.
DOI : 10.1155/2018/5608286
Cet article présente la méthode de l’utilisateur extraordinaire, dont le but est de stimuler l’innovation radicale en permettant aux concepteurs de redécouvrir les besoins fonctionnels liés à l’usage des produits. Cette méthode s’inspire des approches centrées utilisateurs, tout en cherchant à évite…
Psychologie du travail et des organisations. 2017;24(4)
DOI : 10.1016/j.pto.2017.11.001
Presently, there is a clear trend for both businesses and public institutions to move towards open or collaborative innovation. Nevertheless, engaging all stakeholders, especially users, for cocreating innovative solutions and usage scenarios is, as revealed in previous studies, not so obvious. We d…
International Journal of Virtual Reality. 2017;17(02):12.
Cryogenic-assisted machining has already shown its advantages on the process and the machining parameters have been analysed. However, part of the coolant jet characteristics as the pressure and flow rate have not been completely studied and optimized. Hence, the main objective of this study is to i…
International Journal of Advanced Manufacturing Technology. 2017;93(1-4):1199-1206.
DOI : 10.1007/s00170-017-0604-7
Nickel based alloys are extensively used in the aerospace industry due to the excellent corrosion resistance and high mechanical properties that are maintained up to elevated temperatures (600–800 °C). However, these superalloys are classified as difficult-to-cut and therefore modelling and simulati…
Materials Science and Engineering: A. 2017;682:441-453.
DOI : 10.1016/j.msea.2016.11.054
Several studies showed that thin-plies composite laminates apparently exhibit higher strength than its counterpart using thicker plies. In this work, a high-resolution numerical discretization based on the use of in-plane-out-of-plane separated representations within the Proper Generalized Decomposi…
Composite Structures. 2017;12.
DOI : 10.1016/j.compstruct.2017.03.083
The development of computation means has allowed the simulation of complex mechanical problems. The first simulations of manufacturing processes at the microstructure scale, namely in the field of machining, have recently emerged. In this study, and on the basis of previous research, a novel approac…
Finite Elements in Analysis and Design. 2017;137:43-55.
DOI : 10.1016/j.finel.2017.08.002
The chip formation mechanism of the Ti-6Al-4V remains a challenging problem in the machining process as well as its modeling and simulation. Starting from experimental observation on the titanium alloys Ti-6Al-4V machining shows that the ductile fracture in the chip formation is dominated by the she…
International Journal of Mechanical Sciences. 2017;134:p.189-202.
DOI : 10.1016/j.ijmecsci.2017.10.017
FFT-based homogenization methods aim at calculating the effective behavior of heterogeneous materials with periodic microstructures. These methods operate on a regular grid of voxels, and hence require an appropriate spatial discretization of periodic microstructures. However, when different microst…
Mechanics of Materials. 2017;105:157-165.
DOI : 10.1016/j.mechmat.2016.12.002
Purpose : The purpose of this paper is to analyze two-dimensional steady-state Rayleigh–Bénard convection within rectangular enclosures in different aspect ratios filled with yield stress fluids obeying the Herschel–Bulkley model. Design/methodology/approach : In this study, a numerical method based…
Engineering Computations. 2017;19.
This article presents a review of selected multiaxial high-cycle fatigue criteria with an emphasis on their ability to take into account the mean stress effect and the effect of a biaxial stress state. It is shown that the predictions of the various criteria are very different for the case of biaxia…
Fatigue and Fracture of Engineering Materials and Structures. 2017..
DOI : 10.1111/ffe.12699
Current design of virtual reality (VR) applications relies essentially on the transposition of users’ viewpoint in first-person perspective (1PP). Within this context, our research aims to compare the impact and the potentialities enabled via the integration of the third-person perspective (3PP) in …
Frontiers in Robotics and AI. 2017;4(Article 33):12.
DOI : 10.3389/frobt.2017.00033
Titanium alloy is well known for its difficulty to machine, owing to the important “tool wear” phenomenon. Machining assistance is an interesting solution to lengthen the tool lifetime. In this study, we focused on the effect of cryogenic assistance—during machining of Ti17—on the tool wear and cutt…
International Journal of Advanced Manufacturing Technology. 2016;91(5-8):1493-1505.
DOI : 10.1007/s00170-016-9841-4
There are increasing new advances in virtual reality technologies as well as a rise in immersive virtual environments research and user experience research. Within this framework, we decided to address the overall user experience in immersive virtual environments. Indeed, in our point of view, this …
International Journal of Virtual Reality. 2016;16(01):33-48.
Stress-controlled fatigue tests were run at different R ratios (¼ r min =r max) up to at most 3 million cycles on a 2.5%Cr–1%Mo steel (ASTM A182 F22) used in riser tubes connectors for offshore oil drilling. The fatigue lives, as well as the slope of the S–N curves were found to decrease with increa…
International Journal of Fatigue. 2016;82(part 3):437-448.
DOI : 10.1016/j.ijfatigue.2015.08.028
The aim of this study is to develop a new numerical cutting model that includes fluid structure interaction and to take into account heat transfer between the water-jet, the workpiece and the chip. This has been achieved using a CEL (Coupled–Eulerian–Lagrangian) technique, an algorithm has been deve…
Finite Elements in Analysis and Design. 2016;108:1-8.
DOI : 10.1016/j.finel.2015.09.003
The Langevin function is defined by L (x ) = coth (x ) −1 /x . Its inverse is useful for many applications and especially for polymer science. As the inverse exact expression has no analytic representation, many ap- proximations have been established. The most famous approximation is the one traditi…
Journal of Non-Newtonian Fluid Mechanics. 2016;:1-5.
DOI : 10.1016/j.jnnfm.2016.02.008
The vibrational characteristics of a microbeam are well known to strongly depend on the fluid in which the beam is immersed. In this paper, we present a detailed theoretical study of the modal analysis of microbeams partially immersed in a viscous fluid. A fixed-free microbeamvibrating in a viscous …
Physics Research International. 2016;2016:6761372-1-6761372-14.
DOI : 10.1155/2016/6761372
This article is dedicated to the high cycle fatigue (HCF) behaviour of cast Al-Si alloys. In particular, three similar alloys with different microstructural characteristics are investigated. The result of an experimental campaign are presented, in order to characterise the fatigue behaviour, and mor…
Materials Science and Engineering: A. 2016;649:426–440.
DOI : 10.1016/j.msea.2015.10.026
Permeability is the fundamental macroscopic material property needed to quantify the flow in a fibrous medium viewed as a porous medium. Composite processing models require the permeability as input data to predict flow patterns and pressure fields. In a previous work, the expressions of macroscopic…
International Journal of Material Forming. 2016;1-10.
DOI : 10.1007/s12289-016-1300-0
There are increasing new advances in Virtual Reality technologies as well as a rise in Immersive Virtual Environments research and in User eXperience research. Within this framework, we decided to address the overall user experience in Immersive virtual environments. Indeed, in our point of view, th…
International Journal of Virtual Reality. 2016;16(1):33-48.
In this paper, a deep study of constitutive parameters definition effect is done in order to guarantee sufficient reliability of the finite element machining modeling. The case of a particular biphasic titanium alloy Ti6Al4V known by its low machinability is investigated. The Johnson-Cook (JC) elast…
International Journal of Advanced Manufacturing Technology. 2016;1-21.
DOI : 10.1007/s00170-016-8934-4
An analytical and numerical study for the torsional vibrations of viscous fluid-filled three-layer transversely isotropic cylinder is presented in this paper. The equations of motion of solid and fluid are respectively formulated using the constitutive equations of a transversely isotropic cylinder …
International Journal of Applied Mechanics. 2016;8(3):1650032-1-1650032-14.
DOI : 10.1142/S1758825116500320
The numerical solution of the Chemical Master Equation (CME) governing gene regulatory networks and cell signaling processes remains a challenging task due to its complexity, exponentially growing with the number of species involved. When considering separated representations of the probability dist…
Biological Systems: Open Access. 2016;5(1):1-12.
DOI : 10.4172/2329-6577.1000155
Understanding the physics of chip formation in machining operations is often difficult due to the complexity of the phenomena involved, such as the extreme and complex loading conditions that occur in the cutting zone. In order to model the machining process, it is necessary to use a constitutive be…
International Journal of Advanced Manufacturing Technology. 2016;1-11.
DOI : 10.1007/s00170-016-9476-5
This study focuses on the optimization of the machining assisted by cryogenic cooling. The main objective is to analyze the effect of the pressure and the flow of liquid nitrogen on tool life when machining titanium alloy Ti-6Al-4V using the cryogenic assisted machining. A nozzle holder has been spe…
HSM - High Speed Machining. 2016;2016:1-3.
This study proposes to simulate the deep drawing on carbon woven composites in order to reduce the manufacturing cost and waste of composite material during the stamping process, The multi-scale anisotropic approach of woven composite was used to develop a finite element model for simulating the ori…
Applied Composite Materials. 2016;23(3):461-476.
DOI : 10.1007/s10443-015-9468-x
Enhancing thermal conductivity of simple fluids is of major interest in numerous applicative systems. One possibility of enhancing thermal properties consists of dispersing small conductive particles inside. However, in general, aggregation effects occur and then one must address systems composed of…
Entropy. 2016;19:1-15.
DOI : 10.3390/e19010019
In this work, a crystal plasticity constitutive model is proposed to describe the mechanical behavior of metallic materials for which twinning plays a significant role in the deformation process. Constitutive relations are obtained from a micromechanical approach that explicitly considers the intera…
International Journal of Plasticity. 2016;85:156-171.
DOI : 10.1016/j.ijplas.2016.07.007
The fine description of complex fluids can be carried out by describing the evolution of each individual constituent (e.g. each particle, each macromolecule, etc.). This procedure, despite its conceptual simplicity, involves many numerical issues, the most challenging one being that related to the c…
Communications in Computational Physics. 2015;17(4):975-1006.
DOI : 10.4208/cicp.2014.m326
In this work, we begin by considering the qualitative modeling of biological regulatory systems using process hitting, from which we define its probabilistic counterpart by considering the chemical master equation within a kinetic theory framework. The last equation is efficiently solved by consider…
Entropy. 2015;17(4):1896-1915.
DOI : 10.3390/e17041896
The macroscopic behavior of polycrystalline materials is largely influenced by the shape, the arrangement and the orientation of crystallites. Different methods have thus been developed to determine the effective behavior of such materials as a function of their microstructural features. In this wor…
Computational Materials Science. 2015;103:134-144.
DOI : 10.1016/j.commatsci.2015.03.028
The convergence of technologies currently observed in the field of Virtual Reality, Augmented Reality, robotics and consumer electronic reinforces the trend of new applications appearing every day. But when transferring knowledge acquired from research to businesses, research laboratories are often …
International Journal of Virtual Reality. 2015;15(1):35-47.
DOI : 10.20870/IJVR.2015.15.1.2867
Nanocomposites allow for a significant enhancement of functional properties, in particular electrical conduction. In order to optimize materials and parts, predictive models are required to evaluate particle distribution and orientation. Both are key parameters in order to evaluate percolation and t…
Advanced Modeling and Simulation in Engineering Sciences. 2015;2(23):1-24.
DOI : 10.1186/s40323-015-0044-6
Purpose – The purpose of this paper is to compute flow effects of the transition from adherence-to-slip in two-dimensional flows, for a polymer melt obeying a memory-integral viscoelastic equation, in isothermal and non-isothermal cases. Design/methodology/approach – Temperature dependence is expres…
Engineering Computations. 2015;32(8):2318-2342.
DOI : 10.1108/EC-02-2014-0039
The origin of this article is the quantification of productivity gains and the improvement in surface integrity seen for a recent titanium alloy that is seeing increasing use in the aeronautical industry. The Ti555–3 titanium alloy, which is starting to find greater application in the aeronautical f…
Machining Science and Technology. 2015;19(1):134-151.
DOI : 10.1080/10910344.2014.991029
This paper presents experimental results concerning the machinability of the titanium alloy Ti17 with and without high-pressure water jet assistance (HPWJA) using uncoated WC/Co tools. For this purpose, the influence of the cutting speed and the water jet pressure on the evolution of tool wear and c…
Precision Engineering. 2015;42:294-301.
DOI : 10.1016/j.precisioneng.2015.06.004
Purpose – The purpose of this paper is to focus on the advanced solution of the parametric non-linear model related to the Rayleigh-Benard laminar flow involved in the modeling of natural thermal convection. This flow is fully determined by the dimensionless Prandtl and Rayleigh numbers. Thus, if on…
International Journal of Numerical Methods for Heat and Fluid Flow. 2015;25(6):1252-1281.
DOI : 10.1108/HFF-06-2014-0196
L'analyse du comportement mécanique des matériaux entraîne de nombreuses difficultés du point de vue numérique. Dans ce travail, nous allons nous focaliser sur l'une d'entre elles, celle associée à la simulation transitoire du comportement mécanique quand l'intervalle temporel d'intérêt est substant…
Comptes Rendus. Mécanique. 2015;343(4):247-263.
DOI : 10.1016/j.crme.2015.02.002
Laser-assisted machining combines several experimental parameters such as cutting speed, feed rate, depth of cut, laser power and distance between tool rake face and the laser beam axis. The optimization of these parameters is necessary to ensure the efficiency of assistance and to increase producti…
Finite Elements in Analysis and Design. 2014;92:72-79.
DOI : 10.1016/j.finel.2014.08.006
A potential flow is presented in this paper for the analysis of the fluid-structure interaction systems including, but not limited to, the idealized human head. The model considers a cerebro-spinal fluid (CSF) medium interacting with two solid domain. The fluid field is governed by the linearized Na…
International Journal of Applied Mechanics. 2014;6(5):1-20.
DOI : 10.1142/S1758825114500495
Context: The participation of users in the design process is recognized as a positive and a necessary element as artifacts suit their needs. Two complementary approaches of users' involvement co-exist: the user-centered design and the participatory design. These approaches involve learning process f…
Information and Software Technology. 2014;56(8):1049-1061.
DOI : 10.1016/j.infsof.2014.04.008
We present an empirical study on direct selection tasks in virtual environment (VE). The aim is to assess the interest of a new markerless hand tracking system, based on a time-of-flight 3D camera, on a classical mouse, by comparing performances and subjective judgments relatively to utility, usabil…
International Journal of Design and Innovation Research. 2014;19(1):1-20.
It is now well established that separated representations built with the help of Proper Generalized Decomposition (PGD) can drastically reduce computational costs associated with solution of a wide variety of problems. However, it is still an open question to know if separated representations can be…
Computer Methods in Applied Mechanics and Engineering. 2014;273:56-76.
DOI : 10.1016/j.cma.2014.01.019
The ascending branch of the aorta is one of the most stressed organ of the arterial system. We aim to design a biomechanical model for analysing the aorta dynamics under a shock. The model includes the aorta layers and the influence of the blood pressure. We undertake a three-dimensional modal analy…
International Journal of Engineering Science. 2014;84:113-126.
DOI : 10.1016/j.ijengsci.2014.06.015
Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the different production steps. The punching process, whic…
Materials & Design. 2014;56:657-670.
DOI : 10.1016/j.matdes.2013.11.016
Simulation of all phenomena taking place in a surgical procedure is a formidable task that involves, when possible, the use of supercomputing facilities over long time periods. However, decision taking in the operating room needs for fast methods that provide an accurate response in real time. To th…
Journal of Computational Surgery. 2014;1(1):1-14.
DOI : 10.1186/2194-3990-1-1
Optimization of manufacturing processes or structures involves the optimal choice of many parameters (process parameters, material parameters or geometrical parameters). Usual strategies proceed by defining a trial choice of those parameters and then solving the resulting model. Then, an appropriate…
Computer Methods in Applied Mechanics and Engineering. 2014;268:178-193.
DOI : 10.1016/j.cma.2013.09.003
We extend the Maffettone–Minale model by including non-elliptical shapes of dispersed particles, a new family of internal forces controlling particle deformations, and particle–particle interactions. The last extension is made by transposing the way the chain-chain interactions are mathematically ex…
Journal of Non-Newtonian Fluid Mechanics. 2014;212:1-12.
DOI : 10.1016/j.jnnfm.2014.07.005
This paper aims to propose and evaluate a markerless solution for capturing hand movements in real time to allow 3D interactions in virtual environments (VEs). Tools such as keyboard and mice are not enough for interacting in 3D VE; current motion capture systems are expensive and require wearing eq…
Virtual Reality. 2014;1-20.
DOI : 10.1007/s10055-014-0255-z
In this article, the development of an industrial prototype for manufacturing aeronautical fuselage panels is investigated. Deep drawing of large components such as aircraft fuselage panels is not an easy task in terms of dimensional accuracy, reliable material behaviour laws and failure criteria. H…
International Journal of Computer Integrated Manufacturing. 2014;27(2):129-138.
DOI : 10.1080/0951192X.2013.800641
The aim of this article is to analyze the impact of two user interfaces - a tactile interface and a computer mouse - in a virtual environment allowing self-learning tasks, such as dishwashing, by workers with mental deficiencies. We carried out an experiment within the context of a design project na…
International Journal of Child Health and Human Development. 2014;7(4):1-16.
Blanking of sheet metal is an important forming process in the automotive industry for the manufacture of mechanical components. The final component shape, obtained at the end of bending or deep-drawing processes, often has sharp edges due to the blanking operation. Concerning passenger safety compo…
International Journal of Advanced Manufacturing Technology. 2014;71(5-8):1019-1032.
DOI : 10.1007/s00170-013-5522-8
Micro-macro simulations of polymeric solutions rely on the coupling between macroscopic conservation equations for the fluid flow and stochastic differential equations for kinetic viscoelastic models at the microscopic scale. In the present work we introduce a novel micro-macro numerical approach, w…
Journal of Non-Newtonian Fluid Mechanics. 2013;201:29-38.
DOI : 10.1016/j.jnnfm.2013.07.004
A mechanistic approach to the Kitagawa-Takahashi diagram using a multiaxial probabilistic framework.
The aim of this paper is to propose a flexible multiaxial modelling framework that is capable of combining two fatigue damage mechanisms so as to continuously describe the Kitagawa-Takahashi diagram. It is proposed that this diagram represents two distinct fatigue damage mechanisms: one associated w…
Engineering Fracture Mechanics. 2013;109:89-104.
DOI : 10.1016/j.engfracmech.2013.06.001
The use of HSLA steels for the manufacture of automotive components is interesting from an engineering point of view. This family of steels, while possessing high strength, also has good formability and can be used in forming manufacturing processes. In some forming processes such as blanking, shear…
Materials & Design. 2013;50:207-222.
DOI : 10.1016/j.matdes.2013.02.075
A review of the different phenomenological thermo-viscoplastic constitutive models often applied to forging and machining processes is presented. Several of the most common models have been identified using a large experimental database (Hor et al., 2013). The latter consists of the tests were done …
Mechanics of Materials. 2013;64:91-110.
DOI : 10.1016/j.mechmat.2013.05.002
This article presents the results of an experimental study on the Ti17 titanium alloy, which was carried out to analyze tool wear and the degradation mechanisms of an uncoated tungsten carbide tool insert. Two machining conditions, roughing and finishing, have been studied under different lubricatio…
Wear. 2013;305(1-2):228-237.
DOI : 10.1016/j.wear.2013.06.018
When suspensions involving rigid rods become too concentrated, standard dilute theories fail to describe their behavior. Rich microstructures involving complex clusters are observed, and no model allows describing its kinematics and rheological effects. In previous works the authors propose a first …
Entropy. 2013;15(7):2805-2832.
DOI : 10.3390/e15072805
Titanium alloys are known for their excellent mechanical properties, especially at high temperature. But this specificity of titanium alloys can cause high cutting forces as well as a significant release of heat that may entail a rapid wear of the cutting tool. To cope with these problems, research …
Key Engineering Materials. 2013;554-557:1961-1966.
DOI : 10.4028/www.scientific.net/KEM.554-557.1961
Smoluchowski kinetic equation governing the time evolution of the pair correlation function of rigid sphericalparticles suspended in a Newtonian fluid is extended to include particle migration. The extended kinetic equation takes into account three types of forces acting on the suspended particles: …
Rheologica Acta. 2013;52(6):557-577.
DOI : 10.1007/s00397-013-0705-7
A new extension of the Gurson damage model has been proposed recently to predict ductile fracture under shear dominated loads. The aim of this work is to verify the ability of this approach to simulate, in an accurate way, the damage evolution in shearing processes. An implicit stress integration al…
Computational Materials Science. 2013;72:62-67.
DOI : 10.1016/j.commatsci.2013.01.035
Proper Generalized Decomposition (PGD) is a method which consists in looking for the solution to a problem in a separate form. This approach has been increasingly used over the last few years to solve mathematical problems. The originality of this work consists in the association of PGD with a spect…
Applied Mathematics and Computation. 2013;219(15):8145-8162.
DOI : 10.1016/j.amc.2013.02.022
In this paper, we investigate ability of proper generalized decomposition (PGD) to solve transient elastodynamic models in space-time domain. Classical methods use time integration schemes and an incremental resolution process. We propose here to use standard time integration methods in a non-increm…
Computer Methods in Applied Mechanics and Engineering. 2013;255:67-88.
DOI : 10.1016/j.cma.2012.11.003
This papers addresses two issues usually encountered when simulating thermal processes in forming processes involving tape-type geometries, as is the case of tape or tow placement, surface treatments, ... The first issue concerns the necessity of solving the transient model a huge number of times be…
International Journal of Thermal Sciences. 2013;65:148-157.
DOI : 10.1016/j.ijthermalsci.2012.10.017
The sense of "Presence" (evolving from "telepresence") has always been associated with virtual reality research and is still an exceptionally mystifying constituent. Now the study of presence clearly spans over various disciplines associated with cognition. This paper attempts to put forth a concept…
Frontiers in Psychology. 2013;4(86):1-13.
DOI : 10.3389/fpsyg.2013.00086
This article is dedicated to the high cycle fatigue behaviour of cast hypo-eutectic Al-Si alloys. In particular, the AlSi7Cu05Mg03 alloy is investigated. It presents the results of a vast experimental campaign undertaken to investigate the fatigue behaviour, and more specifically the fatigue damage …
International Journal of Fatigue. 2013;47:44-57.
DOI : 10.1016/j.ijfatigue.2012.07.008
During forging and machining manufacturing processes, the material is subject to large strains at high strain rates which provoke local heating and microstructural changes. Modelling of these phenomena requires precise knowledge of the stress-strain constitutive equations for a large range of strain…
International Journal of Mechanical Sciences. 2013;vol. 67:pp. 108-122.
DOI : 10.1016/j.ijmecsci.2013.01.003
This article is dedicated to the high cycle fatigue behaviour of cast hypo-eutectic Al-Si alloys. In particular, the AlSi7Cu05Mg03 alloy is investigated. It presents the results of a vast experimental campaign undertaken to investigate the fatigue behaviour, and more specifically the fatigue damage …
International Journal of Fatigue. 2013;47:44-57.
During forging and machining manufacturing processes, the material is subject to large strains at high strain rates which provoke local heating and microstructural changes. Modelling of these phenomena requires precise knowledge of the stress-strain constitutive equations for a large range of strain…
International Journal of Mechanical Sciences. 2013;67:108-122.
DOI : 10.1016/j.ijmecsci.2013.01.003
This article is dedicated to the high cycle fatigue behaviour of cast hypo-eutectic Al-Si alloys and in particular the AlSi7Cu05Mg03 alloy. In a vast experimental campaign undertaken to investigate the fatigue damage mechanisms operating in this alloy, subject to complex loading conditions, it was s…
International Journal of Fatigue. 2013;47:137-147.
DOI : 10.1016/j.ijfatigue.2012.08.004
L’objectif de cet article est d’esquisser une synthèse sur la notion d’utilité, ses facettes et sur les façons dont les méthodes contribuent à concevoir un système « utile ». Après avoir exposé nos motivations pour le développement de recherches sur l’utilité en conception, nous tentons de clarifier…
Le travail humain. 2013;76(1):27-55.
DOI : 10.3917/th.761.0027
Modeling frameworks bring structure and analysis tools to large and non-intuitive systems but come with certain inherent assumptions and limitations, sometimes to an inhibitive extent. By building bridges in existing models, we can exploit the advantages of each, widening the range of analysis possi…
Computational Methods in Systems Biology. 2013;8130:50-63.
DOI : 10.1007/978-3-642-40708-6_5
To obtain robust estimations of the fatigue limit from energy-based fatigue criteria, constitutive laws must include a correct description of the energy balance when modeling the cyclic behavior. The present paper aims at providing a better understanding of the evolution of the energy balance at bot…
Mechanics of Materials. 2013;60:93-106.
DOI : 10.1016/j.mechmat.2013.01.011
In this paper we are addressing a new paradigm in the field of simulation-based engineering sciences (SBES) to face the challenges posed by current ICT technologies. Despite the impressive progress attained by simulation capabilities and techniques , some challenging problems remain today intractabl…
Archives of Computational Methods in Engineering. 2013;20(1):31-59.
DOI : 10.1007/s11831-013-9080-x
This article describes a user-centred method used to design innovative pattern recognition software for technical paper documents. This kind of software can make some errors of interpretation. It will therefore be important that human operators are able to identify and correct these mistakes. The id…
Journal of Software Engineering and Applications. 2013;06(10):1-4.
DOI : 10.4236/jsea.2013.610A001
Determining a material constitutive law that is representative of the extreme conditions found in the cutting zone during machining operations is a very challenging problem. In this study, dynamic shear tests, which reproduce, as faithfully as possible, these conditions in terms of strain, strain ra…
Journal of Engineering Materials and Technology. 2013;135(3):031002-0310013.
DOI : 10.1115/1.4023674
This paper studies the influence of boundary conditions on a fluid medium of finite depth.We determine the frequencies and the modal shapes of the fluid.The fluid is assumed to be incompressible and viscous. A potential technique is used to obtain in three-dimensional cylindrical coordinates a gener…
Advances in Acoustics and Vibration. 2013;2013(857821):1-15.
DOI : 10.1155/2013/857821
The Ti533-3 alloy is a new titanium alloy which is starting to see increased use in the aeronautical domain to improve the durability of components and to optimize the weight/resistance ratio. This alloy is characterized by greater resistance compared to the more commonly used titanium alloys such a…
International Journal of Advanced Manufacturing Technology. 2013;68(9-12):2471-2481.
DOI : 10.1007/s00170-013-4855-7
The morphology influencing rheological properties of suspensions of rigid spheres constitutes the flow induced collective ordering of the spheres characterized by two or more sphere distribution functions. When the rigid spheres are replaced by rigid fibers, the collective order in the position of t…
Journal of Non-Newtonian Fluid Mechanics. 2013;200:17-33.
DOI : 10.1016/j.jnnfm.2012.10.009
This paper focuses on the non-incremental solution of transient coupled non-linear models, in particular the one related to the Rayleigh-Benard flow problem that models natural thermal convection. For this purpose we are applying the so-called Proper Generalized Decomposition that proceeds by perfor…
Journal of Non-Newtonian Fluid Mechanics. 2013;200:65-78.
DOI : 10.1016/j.jnnfm.2012.11.007
The aim of this study is to apply proper generalized decomposition (PGD) to solve mixed-convection problems with and without mass transport in a two dimensional lid-driven cavity. PGD is an iterative reduced order model approach which consists of solving a partial differential equation while seeking…
Numerical Heat Transfer, Part B Fundamentals. 2013;63(1):18-43.
DOI : 10.1080/10407790.2012.724991
The numerical solution of the chemical master equation (CME) governing gene regulatory networks and cell signaling processes remains a challenging task owing to its complexity, exponentially growing with the number of species involved. Although most of the existing techniques rely on the use of Mont…
International Journal for Numerical Methods in Biomedical Engineering. 2012;28(9):960-973.
DOI : 10.1002/cnm.2476
This work addresses the recurrent issue related to the existence of reduced bases related to the solution of parametric models defined in evolving domains. In this first part of the work, we address the case of decoupled kinematics, that is, models whose solution does not affect the domain in which …
International Journal for Numerical Methods in Engineering. 2012;93(8):887-904.
DOI : 10.1002/nme.4413
The objective of this work is to propose an anisotropic fatigue criterion for the sizing of industrial forged components. The results from different experimental campaigns using three different rolled steels are first presented. The effect of inclusions and the microstructure on the fatigue behaviou…
International Journal of Fatigue. 2012;168-178.
DOI : 10.1016/j.ijfatigue.2012.01.005
A direct modeling of colloidal suspensions consists of calculating trajectories of all suspended objects. Due to the large time computing and the large cost involved in such calculations, we consider in this paper another route. Colloidal suspensions are described on a mesoscopic level by a distribu…
Rheologica Acta. 2012;51(6):527-543.
DOI : 10.1007/s00397-011-0609-3
Journal of Decision Systems. 2012;19(1):9-31.
DOI : 10.3166/jds.19.9-31
The prediction of microstructure evolution during passive mixing is of major interest in order to qualify and quantify mixing devices as well as to predict the final morphology of the resulting blend. Direct numerical simulation fails because of the different characteristic lengths of the microstruc…
International Journal of Material Forming. 2012;5(1):73-81.
DOI : 10.1007/s12289-011-1037-8
This paper aims to show to what extent the Web3D is an advantage for implementing the Living Lab approach. In order to achieve this objective, we develop a project the context of an Action-Research. A state-of-the-art of Web3D solutions for e-commerce enabled us to select the most suitable functiona…
International Journal of Design and Innovation Research. 2012;7(1):1-20.
The dynamics of phase transition in a binary mixture occurring during a quench is studied taking into account composition fluctuations by solving Langer's equation in a domain composed of a certain number of micro-domains. The resulting Langer's equation governing the evolution of the distribution f…
Modelling and Simulation in Materials Science and Engineering. 2012;20(1)
DOI : 10.1088/0965-0393/20/1/015007
We review the foundations and applications of the proper generalized decomposition (PGD), a powerful model reduction technique that computes a priori by means of successive enrichment a separated representation of the unknown field. The computational complexity of the PGD scales linearly with the di…
Journal of Non-Newtonian Fluid Mechanics. 2011;166(11):578-592.
Laser Assisted Machining (LAM) improves the machinability of materials by locally heating the workpiece just prior to cutting. Experimental investigations have confirmed that the cutting force can be decreased, by as much as 40%, for various materials. In order to understand the effect of the laser …
International Journal of Machine Tools and Manufacture. 2011;51(3):230-238.
DOI : 10.1016/j.ijmachtools.2010.11.006
This work deals a contribution to ductile damage of High-Strength Low-Alloy (HSLA) steel steels under low stress triaxiality. This work is based on micrographics observations and in situ shear tests to examine the evolution of microstructure in this kind of loading and to identify the damage process…
Key Engineering Materials. 2011;473:460-467.
DOI : 10.4028/www.scientific.net/KEM.473.460
In this work, the PGD method will be considered for solving some problems of fluid mechanics by looking for the solution as a sum of tensor product functions. In the first stage, the equations of Stokes and Burgers will be solved. Then, we will solve the Navier-Stokes problem in the case of the lid-…
Journal of Computational Physics. 2011;230(4):1387-1407.
DOI : 10.1016/j.jcp.2010.11.010
Le mélange de fluides immiscibles est fréquemment utilisé dans de nombreuses applications industrielles. Une approche directe de la représentation de cette interface est impossible du fait de la différence de taille caractéristique entre la microstructure et le procédé lui-même. Pour cette raison, l…
Rhéologie. 2011;20:44-52.
Forged components are known to show high cyclic and monotonic mechanical properties. This is mainly due to a better compactness and a finer microstructure introduced by the forming process. However, this good mechanical behaviour is sometimes a source of anisotropy especially when the microstructura…
International Journal of Fatigue. 2011;33(4):568-577.
DOI : 10.1016/j.ijfatigue.2010.10.012
The aim of this paper is to present a novel un-notched fatigue test specimen in which a biaxial stress state is achieved using a uniaxial loading condition. This allows the problem of multi-axial fatigue to be studied using relatively common one-axis servo-hydraulic testing machines. In addition the…
Strain. 2011;47(3):227-240.
DOI : 10.1111/j.1475-1305.2009.00674.x
Models encountered in computational mechanics could involve many time scales. When these time scales cannot be separated, one must solve the evolution model in the entire time interval by using the finest time step that the model implies. In some cases, the solution procedure becomes cumbersome beca…
International Journal for Numerical Methods in Engineering. 2011;90(5):569-596.
DOI : 10.1002/nme.3331
Researchers of the Ubiquitous Computing community (Ubicomp) have been pursuing the vision of a world where technologies and services permeates every object of our lives for years. With components getting smaller, cheaper and more powerful, it has become possible to manufacture connected objects capa…
International Journal of Design and Innovation Research. 2011;6(1):1-25.
Formulas expressing the extra stress tensor, $\boldsymbol\sigma$, in fiber suspensions in terms of microstructural state variables are derived by using two types of arguments: mechanical and thermodynamical. Results are compared for the distribution function ($\psi$) and the orientation tensor, $\ma…
Journal of Rheology. 2011;55:17-42.
DOI : 10.1122/1.3523538
This paper focuses on the efficient solution of models defined in high dimensional spaces. Those models involve numerous numerical challenges because of their associated curse of dimensionality. It is well known that in meshbased discrete models the complexity (degrees of freedom) scales exponential…
Mathematics and Computers in Simulation. 2010;81(4):791-810.
DOI : 10.1016/j.matcom.2010.07.015
Fatigue phenomena, which appear generally below the yield stress, is the cause of more than 80 % of in-service mechanical failures. However, the optimization of the weight and cost when designing mechanical components or structures, linked to improved performance, leads to increasingly stressed comp…
International Journal on Interactive Design and Manufacturing. 2010;4(4):281-287.
DOI : 10.1007/s12008-010-0110-8
Separated representations based on finite sum decompositions constitute an appealing strategy for reducing the computer resources and the calculation costs by reducing drastically the number of degrees of freedom that the functional approximations involve (the number of degrees of freedom scale line…
International Journal for Numerical Methods in Engineering. 2010;81(5):637-659.
DOI : 10.1002/nme.2710
In this paper the coupling of a parabolic model with a system of local kinetic equations is analyzed. A space time separated representation is proposed for the global model (this is simply the radial approximation proposed by Pierre Ladeveze in the LATIN framework (Non-linear Computational Structura…
International Journal for Numerical Methods in Engineering. 2010;83(8-9):1114-1132.
DOI : 10.1002/nme.2794
Rheological model of fluids involving Brownian relaxation, reptation, diffusion, and scission–recombination processes as relaxation mechanisms is formulated. Numerical solution of a particular example of the model displays the S-shape form of the shear rate versus shear stress curves observed in wor…
Rheologica Acta. 2010;49(5):495-506.
DOI : 10.1007/s00397-009-0428-y
This paper revisits a powerful discretization technique, the Proper Generalized Decomposition—PGD, illustrating its ability for solving highly multidimensional models. This technique operates by constructing a separated representation of the solution, such that the solution complexity scales linearl…
Archives of Computational Methods in Engineering. 2010;17(4):327-350.
DOI : 10.1007/s11831-010-9049-y
In this paper we study the convergence of the well-known Greedy Rank-One Update Algorithm. It is used to construct the rank-one series solution for full-rank linear systems. The existence of the rank one approximations is also not new, but surprisingly the focus there has been more on the applicatio…
Archives of Computational Methods in Engineering. 2010;17(4):473-486.
DOI : 10.1007/s11831-010-9048-z
Computational homogenization is nowadays one of the most active research topics in computational mechanics. Different strategies have been proposed, the main challenge being the computing cost induced by complex microstructures exhibiting nonlinear behaviors. Two quite tricky scenarios lie in (i) th…
Archives of Computational Methods in Engineering. 2010;17(4):373–391.
DOI : 10.1007/s11831-010-9051-4
Models encountered in computational physics and engineering, usually involve too many degrees of freedom, too many simulation time-steps, too many iterations (e.g. non-linear models, optimization or inverse identification…), or simply excessive simulation time (for example when simulation in real ti…
Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics. 2009;18(5-6):445-463.
DOI : 10.3166/ejcm.18.445-463
In this work we analyze the possibilities of applying model reduction in the advanced simulation of materials and processes. The use of such strategies allows impressive computing time savings in the numerical simulations of complex models without degrading the solution accuracy. For this purpose we…
International Journal of Modern Manufacturing Technologies. 2009;1:49-56.
Laser assisted machining (LAM) can improve the machinability of materials by locally heating the material prior to its removal. The work presented here is a study of the laser assisted machining of Inconel 718 (NiCr19FeNb at 46 HRc) with carbide and ceramic insert. The tests have shown a reduction i…
International Journal of Material Forming. 2008;1(1):p. 523-526.
DOI : 10.1007/s12289-008-0213-y
Kinetic theory models of complex fluids involve the resolution of the advectiondiffusion Fokker-Planck equation that is usually performed using stochastic approaches. Stochastic simulation for Finitely Extensible Non Elastic (FENE) dumbbells has been successfully applied (Keunings 1997; Keunings 200…
Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics. 2006;15(5):481-494.
DOI : 10.3166/remn.15.481-494