Scale transition rules applied to crystal plasticity

Georges Cailletaud 1 Florent Coudon 1
1 MAT - Centre des Matériaux
Abstract : Homogenization methods adapted to polycrystalline aggregates are discussed. The description of the transition rule using the self-consistent scheme and based on the assumption of time-independent plasticity are first detailed. A few alternative propositions that simplify the general rate form of the relation given by Hill are also presented, with their limitations. A second part recalls several key ideas used to transfer the problem to time-dependent behavior. A final part is devoted to the comparison of several mean-field models and CPFEM simulations in the case of an equiaxed polycrystalline aggregate with an uniform or heterogeneous local elastic behavior. A significant effect of non-uniform elastic properties is exhibited on the macroscopic behavior, specifically on the apparent yield stress, and also on stress and strain fields
Type de document :
Chapitre d'ouvrage
Liste complète des métadonnées
https://hal-mines-paristech.archives-ouvertes.fr/hal-01306797
Contributeur : Bibliothèque Umr7633 <>
Soumis le : lundi 25 avril 2016 - 15:44:07
Dernière modification le : lundi 12 novembre 2018 - 10:56:46

Identifiants

Collections

ENSMP | ENSMP_MAT | PARISTECH | INSTITUT-TELECOM | PSL

Citation

Georges Cailletaud, Florent Coudon. Scale transition rules applied to crystal plasticity. P. Trovalusci. Materials with internal structure : multiscale and multifield modeling and simulation, Springer, pp.1-15, 2016, 978-3-319-21493-1. ⟨10.1007/978-3-319-21494-8_1⟩. ⟨hal-01306797⟩

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

167

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD