A multiscale model based on intragranular microstructure - Prediction of dislocation patterns at the microscopic scale
Article dans une revue avec comité de lecture
Auteur
FRANZ, GéraldBEN ZINEB, TarakLEMOINE, XavierBERVEILLER, Marcel 
ABED-MERAIM, Farid Résumé
A large strain elastic-plastic single crystal constitutive law, based on dislocation annihilation and storage, is implemented in a new self-consistent scheme, leading to a multiscale model which achieves, for each grain, the calculation of plastic slip activity, with help of regularized formulation drawn from visco-plasticity, and dislocation microstructure evolution. This paper focuses on the relationship between the deformation history of a BCC grain and induced microstructure during monotonic and two-stage strain paths.
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