A Multiscale Model Based On Intragranular Microstructure: Influence Of Grain-Scale Substructure On Macroscopic Behaviour Of An IF-Steel During Complex Load Paths
Communication avec acte
Author
FRANZ, GéraldBEN ZINEB, TarakLEMOINE, XavierBERVEILLER, Marcel 
ABED-MERAIM, Farid Abstract
A microstructural model, based on Peeters' works, is implemented into a large strain self-consistent scheme, leading to the multiscale model which achieves, for each grain, the calculation of slip activity, with help of regularized formulation drawn from the visco-plasticity framework, and the dislocation microstructure evolution. This paper focuses on the relationship between macroscopic hardening/softening effects and induced microstructure during monotonic and two-stage strain paths.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acte; ; ; ;ABED-MERAIM, Farid (2006)
La striction et la rupture au cours de l’opération d’emboutissage figurent parmi les principaux phénomènes limitant les déformations maximales admises par les métaux. Ces phénomènes sont liés à la microstructure des matériaux ...
-
Article dans une revue avec comité de lecture; ; ; ;ABED-MERAIM, Farid (2007)
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, ...
-
Article dans une revue avec comité de lecture; ; ; ; ;ABED-MERAIM, Farid (Elsevier, 2009)
In order to investigate the impact of microstructures and deformation mechanisms on the ductility of materials, the criterion first proposed by Rice is applied to elastic–plastic tangent moduli derived from a large strain ...
-
Communication avec acte; ; ; ;ABED-MERAIM, Farid (2011)
In order to investigate the effects of microstructure and deformation mechanisms on the ductility of multiphase steels, a formability criterion based on loss of ellipticity of the boundary value problem is coupled with an ...
-
Communication sans acte; ; ; ;ABED-MERAIM, Farid (Elsevier, 2007)
The development of a relevant constitutive model adapted to sheet metal forming simulations requires an accurate description of the most important sources of anisotropy, i.e. the slip processes, the intragranular substructure ...