[en] In order to model accurately the anisotropic material behavior during finite element simulations, a precise description of the material yield locus is required. Beside the shape (linked to the material model used), the size (related to the isotropic hardening) and the position (kinematic hardening) of the yield locus, its orientation is of particular interest when large rotations of the material are encountered during the simulations. This paper proposes three distinct
methods for the determination of the material yield locus rotation: a method based on the Constant Symmetric Local Velocity Gradient (CSLVG), a corotational method and a method based on the Mandel spin. These methods are compared during simple shear tests of an aluminum sheet.
Disciplines :
Civil engineering
Author, co-author :
Duchene, Laurent ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F
Diouf, B.
Lelotte, T.
Flores, Paulo
Bouvier, S.
Habraken, Anne ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
Study of axes rotation during simple shear tests on aluminium sheets
Publication date :
2007
Event name :
9th International Conference NUMIFORM 2007
Audience :
International
Main work title :
Proceedings of the 9th International Conference NUMIFORM 2007
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