Characterized behaviors and corresponding yield criterion of anisotropic sheet metals

Due to the limitations of commonly used anisotropic yield criteria, a new anisotropic yield criterion is proposed. The yield criterion fully satisfies anisotropic presentations under the uniaxial and equibiaxial tensions in the rolling, transverse and diagonal directions and is very close to other directions against the rolling. All these experimental data can be fitted independently. So-called "anomalous behavior" phenomenon does not exist in applications of this yield criterion. The yield criterion can also be transformed back to the Mises's yield criterion while the applied materials are isotropic. (C) 2002 Elsevier Science B.V. All rights reserved.