A new method for the evaluation of the yield criteria accuracy

The paper presents a test used to estimate the predictive accuracy of a few yield criteria for anisotropic materials. The performances of the models have been tested on a sort of sheet metal widely used in the industry: aluminium alloy AA3103-0. The results (predicted yield locus, distributions of the uniaxial yield stress, anisotropy coefficients) show the influence of the number of material parameters included in the identification procedure on the accuracy of the criteria.