Three-dimensional characterization of strain localization bands in high-resolution elastoplastic polycrystals |
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| Authors: | Fabrice Barbe Romain Quey Andrei Musienko Georges Cailletaud |
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| Institution: | aINSA Rouen, Groupe de Physique des Matériaux, CNRS UMR 6634, 76801 Saint Etienne du Rouvray, France;bMines Paristech, Centre des Matériaux, CNRS UMR 7633, 91003 Evry, France;cEcole des Mines de Saint Etienne, Laboratoire PECM, CNRS UMR 5146, 42023 Saint Etienne, France;dMaterial Strength Department, State Polytechnical University, 195251, St-Petersburg, Russia |
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| Abstract: | In crystalline materials, the experimental observation of the localization of plastic strains in particular directions is generally restricted to the surface of a sample containing some hundreds of grains, because of the difficulties underlying microstructural analysis. In these conditions, the determination of the morphological characteristics of localization can be limited by the poor statistical representativity of the domain of observation. The purpose of this work is to extend the analysis of localization – localization bands or else – to the 3D elastoplastic strain fields of a high-resolution representative volume element of a polycrystal. |
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| Keywords: | Strain localization Crystal plasticity 3D polycrystal Finite elements |
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