Evaluation of Plasticity Models Using Uniaxial Tensile Test

Abstract

In this study, it is aimed to evaluate plasticity model prediction performance for plastic behavior of materialsusing a uniaxial tensile test. For this purpose, von Mises, Hill-48, Hill-93, Barlat-89 and Hu -2003 plasticitymodels are studied, and DC04, DP780, 6000 series aluminum alloy are used as materials. Tensile tests areperformed with three directions (rolling, diagonal, transverse), and mechanical properties of materials areobtained. In addition, anisotropy coefficients of materials are calculated by uniaxial tensile tests. Validation ofplasticity models is performed using obtained material parameters. Yield locus and yield stresses-anisotropycoefficients depends on directions are used in evaluation of plasticity models. As a result of this study, Hu-2003showed the best modeling performance for all materials.