A yield criterion for orthotropic sheet metals

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(M. Y. Demeri, Eds.) INNOVATIONS IN PROCESSING AND MANUFACTURING OF SHEET MATERIALS. 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA: MINERALS, METALS & MATERIALS SOC (2001) .

M YDemeriMINERALS, METALS & MATERIALS SOC

Abstract

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 in 1989. Two additional coefficients have been introduced in order to allow a better representation of the plastic behavior of the orthotropic sheet metals. The predictions of the new yield criterion are compared with the experimental data for AA5XXX-H22 aluminum alloy.



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