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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Cavaillé, J.-Y.
Institut National des Sciences Appliquées de Lyon
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2021Physical behavior of electrostrictive polymers. Part 1: Polarization forcescitations
- 2019Thickness-dependent microstructural and electromechanical properties in polyurethane films obtained by polymer solution castingcitations
- 2017Difference between electrostriction kinetics, and mechanical response of segmented polyurethane-based EAPcitations
- 2014Nucleation and nonisothermal crystallization kinetics in cross-linked polyethylene/zinc oxide nanocompositescitations
- 2013Electroactive soft polyurethanes used as a smart rubbers
- 2013Influence of the type of carbon nanocharges on the dielectric, mechanical and electroactive properties of polyurethane composites films
- 2011Improvement of electrostrictive properties of a polyether-based polyurethane elastomer filled with conductive carbon blackcitations
- 2010Miniemulsion polymerization for synthesis of structured clay/polymer nanocomposites: Short review and recent advancescitations
- 2010Properties of polymer/clay interphase in nanoparticles synthesized through in-situ polymerization processescitations
- 2009The relationship between the electrical and mechanical properties of polymer-nanotube nanocomposites and their microstructurecitations
- 2008Multiscale modeling of oriented thermoplastic elastomers with lamellar morphologycitations
- 2008Multiscale modeling of oriented thermoplastic elastomers with lamellar morphologycitations
- 2008Mechanical behavior of polystyrene grafted carbon nanotubes/polystyrene nanocompositescitations
- 2008Microstructure and fracture behavior of semicrystalline polymer-clay nanocompositescitations
- 2007Grafting of polystyrene on nitrogen-doped multi-walled carbon nanotubes.citations
- 2007Viscoelastic behavior and electrical properties of flexible nanofiber filled polymer nanocomposites. Influence of processing conditions
- 2007Quantitative structural characterization of polymer-clay nanocomposites and discussion of an "ideal" microstructure, leading to the highest mechanical reinforcementcitations
- 2007Electrical behavior of polymer grafted nanotubes/polymer nanocomposites using N-doped carbon nanotubescitations
- 2006Nanocomposites of isotactic polypropylene reinforced with rod-like cellulose whiskers
- 2006Large deformation mechanical behavior of flexible nanofiber filled polymer nanocomposites
- 2006Carbon nanotube-filled polymer composites. Numerical simulation of electrical conductivity in three-dimensional entangled fibrous networks
- 2006Mechanical properties of high density polyurethane foams: II effect of the filler size
- 2005Poly(dimethyl amino ethyl methacrylate) grafted natural rubber by seeded emulsion polymerization
- 2005Reinforcement effects of vapour grown carbon nanofibres as fillers in rubbery matrices
- 2005Influence du gel sur les propriétés des polychloroprènes/Effect of the gel contents on the properties of Polychloroprene
- 2005Multiwalled carbon nanotube/polymer nanocomposites : processing and propertiescitations
- 2005New Nanocomposite Materials Reinforced with Cellulose Whiskers in Atactic Polypropylene: Effect of Surface and Dispersion Characteristics
- 2005Coupled mechanical and conductivity measurements: Damage detection
- 2004Prediction of the elastic response of polymer based response of polymer based nanocomposites : a mean field approach and a discrete simulationcitations
- 2004Electric anisotropy of carbon nanofibre/epoxy resin composites due to electric field induced alignment
- 2003Mechanical behaviour of polymer nanocomposites: a discrete simulation approach
- 2003Micro-mechanical modelling of small and large strain behaviour of particulate nanocomposites
- 2003Reinforcement of rubbery epoxy by carbon nanofibres
- 2002Rheological behavior of cellulose/monohydrate of N-methylmorpholine N-oxide solutions. Part2 : Glass transition domain
- 2001Polymer based nanocomposites: effect of filler-filler and filler-matrix interactions
Places of action
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article
Multiscale modeling of oriented thermoplastic elastomers with lamellar morphology
Abstract
Thermoplastic elastomers (TPEs) are block copolymers made up of "hard" (glassy or crystalline) and "soft" (rubbery) blocks that self-organize into "domain" structures at a length scale of a few tens of nanometers. Under typical processing conditions, TPEs also develop a "polydomain" structure at the micron level that is similar to that of metal polycrystals. Therefore, from a continuum point of view, TPEs may be regarded as materials with heterogeneities at two different length scales. In this work, we propose a constitutive model for highly oriented, near-single-crystal TPEs with lamellar domain morphology. Based on small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) observations, we consider such materials to have a granular microstructure where the grains are made up of the same, perfect, lamellar structure (single crystal) with slightly different lamination directions (crystal orientations). Having identified the underlying morphology, the overall finite-deformation response of these materials is determined by means of a two-scale homogenization procedure. Interestingly, the model predictions indicate that the evolution of microstructure-especially the rotation of the layers-has a very significant, but subtle effect on the overall properties of near-single-crystal TPEs. In particular, for certain loading conditions-namely, for those with sufficiently large compressive deformations applied in the direction of the lamellae within the individual grains-the model becomes macroscopically unstable (i.e., it loses strong ellipticity). By keeping track of the evolution of the underlying microstructure, we find that such instabilities can be related to the development of "chevron" patterns. © 2008 Elsevier Ltd. All rights reserved.