期刊
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
卷 45, 期 5, 页码 797-811出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0020-7403(03)00139-5
关键词
sheet metals; anisotropy; non-quadratic yield criterion
The paper presents a new yield criterion for orthotropic sheet metals under plane-stress conditions. The criterion is derived from the one proposed by Barlat and Lian (Int. J. Plasticity 5 (1989) 51). Three additional coefficients have been introduced in order to allow a better representation of the plastic behaviour of the sheet metals. The predictions of the new yield criterion are compared with the experimental data for an aluminium alloy sheet and a steel sheet. (C) 2003 Elsevier Ltd. All rights reserved.
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