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Parameter identification of advanced plastic potentials and impact on plastic anisotropy prediction

Article dans une revue avec comité de lecture
Author
RABAHALLAH, Meziane
239210 Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux [LPMTM]
BOUVIER, Salima
239210 Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux [LPMTM]
BACROIX, Brigitte
239210 Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux [LPMTM]
BARLAT, Frédéric
CHUNG, Kwansoo
408431 Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea
TEODOSIU, Cristian
239210 Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux [LPMTM]
ccBALAN, Tudor
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/9934
DOI
10.1016/j.ijplas.2008.03.006
Date
2009
Journal
International Journal of Plasticity

Abstract

In the work presented in this paper, several strain rate potentials are examined in order to analyze their ability to model the initial stress and strain anisotropy of several orthotropic sheet materials. Classical quadratic and more advanced non-quadratic strain rate potentials are investigated in the case of FCC and BCC polycrystals. Different identifications procedures are proposed, which are taking into account the crystallographic texture and/or a set of mechanical test data in the determination of the material parameters.

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