Journal
INTERNATIONAL JOURNAL OF PLASTICITY
Volume 21, Issue 12, Pages 2426-2447Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijplas.2005.03.014
Keywords
simple shear test; strain hardening; plastic anisotropy; yield function; crystal plasticity
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Finite element (FE) simulations of the simple shear test were conducted for 1050-O and 6022-T4 aluminum alloy sheet samples. Simulations were conducted with two different constitutive equations to account for plastic anisotropy: Either a recently proposed anisotropic yield function combined with an isotropic strain hardening law or a crystal plasticity model. The FE computed shear stress-shear strain curves were compared to the experimental curves measured for the two materials in previous works. Both phenomenological and polycrystal approaches led to results consistent with the experiments. These comparisons lead to a discussion concerning the assessment of anisotropic hardening in the simple shear test. (c) 2005 Elsevier Ltd. All rights reserved.
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