A5041462169- Polymer crystallization and properties
- Rheology and Fluid Dynamics Studies
- Injection Molding Process and Properties
- Elasticity and Material Modeling
- Additive Manufacturing and 3D Printing Technologies
- Manufacturing Process and Optimization
- Mechanical Behavior of Composites
- Textile materials and evaluations
- Composite Material Mechanics
- Polymer Foaming and Composites
- Polymer Nanocomposites and Properties
- Wood Treatment and Properties
- Mechanical stress and fatigue analysis
- Optical measurement and interference techniques
- Particle Accelerators and Free-Electron Lasers
- Material Properties and Processing
- Structural Health Monitoring Techniques
- Gear and Bearing Dynamics Analysis
- Railway Engineering and Dynamics
- X-ray Spectroscopy and Fluorescence Analysis
- Adhesion, Friction, and Surface Interactions
- Particle physics theoretical and experimental studies
- Probabilistic and Robust Engineering Design
- Nuclear Physics and Applications
- Advanced NMR Techniques and Applications
Laboratoire Modélisation et Simulation Multi-Echelle
2015-2024
Université Paris-Est Créteil
2010-2024
Centre National de la Recherche Scientifique
2013-2024
Université Gustave Eiffel
1970-2024
Centre Hospitalier Universitaire de Lille
2014-2024
Evaluation des technologies de santé et des pratiques médicales
2023
ORCID
2022
Paris-Est Sup
2009-2014
Hôpital Albert Calmette
2014
Université Paris Cité
2002-2010
Abstract We present an experimental approach to discriminate hyper‐elastic models describing the mechanical behavior of rubber‐like materials. An evaluation displacement field obtained by digital image correlation allows us evaluate heterogeneous strain observed during these tests. focus on particular case simulate some Assuming incompressibility material, potential is determined from tension and compression A biaxial loading condition in a multiaxial testing machine model predictions are...
Abstract A method is described which an extension of rolling contact models with respect to plasticity. This new method, the STRIPES semi-Hertzian (SH) model, has been implemented in a multi-body-system (MBS) package and does not result longer execution time than SH model [J.B. Ayasse H. Chollet, Determination wheel–rail patch conditions, Veh. Syst. Dyn. 43(3) (2005), pp. 161–172]. High speed computation obtained by some hypotheses about plastic law, shape stresses, locus maximum stress...
Characterization of polymer behavior over or near the glass transition temperature in condition close to industrial process remains a scientific goal. In particular being able manage multiaxial loading at high strain rate and large strains is particularly interesting understand Poly Ethylene Terephthalate (PET for short) blowing process. this paper, we present new vertical biaxial tensile machine that has been designed built up our laboratory. particular, (i) thermal regulation enables fast...
The mechanical behavior of polyethylene terephthalate (PET) under the severe loading conditions injection stretch blow molding process is strongly dependent on strain rate, strain, and temperature. In this process, PET near glass‐transition temperature ( T g ) highlights a nonlinear elastic viscous behavior. author's previous works, visco‐hyperelastic model has been build identified from equi‐biaxial tensile experimental results. Despite good agreement with biaxial test results, fails to...
Stretching PET at a high strain rate above the glass transition temperature has positive effect on strength of material. In recent paper[1], we presented influence stretch and blow molding parameters properties final product, especially crystallinity induced by stretching. this paper, focus effects loading, temperature, elongation macromolecular orientation crystallization kinetics. We present experimental results from uniaxial biaxial tests carried out injected specimens. To minimize...
Abstract The stretch-blow molding process of polyethylene terephthalate (PET) bottles generates some important modifications in the mechanical properties material. Considering, temperature (T > T g ) that is usually used, material exhibits a very high viscosity and involves strain hardening effect associated with microstructure evolution. An anisotropic viscoplastic model coupled induced properties, identified from experimental results uniaxial biaxial tensile tests previously published...
The poly ethylene terephthalate near the glass transition temperature highlights a strongly non linear elastic and viscous behaviour when biaxially stretched at high strain rates representative of injection stretch blow moulding process. A visco‐hyperelastic model, where characteristics are coupled to temperature, has already been identified from equi‐biaxial tension experimental results. weak form mechanical part model is presented implemented into finite element code developed in Matlab...