INVERSE IDENTIFICATION METHOD OF PLASTICITY PARAMETERS OF ANISOTROPIC MATERIAL

Nowadays, the finite element method has been widely applied in product calculation and design. One of the critical parameters in finite element modeling are the parameters in the material behavior model. In this study, an inverse procedure determines the values of parameters in the behavior model of anisotropic materials. First, optimization algorithms are used to evaluate the deviation between experimental data and numerical simulations. Based on that, the corresponding parameter values need to be determined. The accuracy of the parameter values determined by the proposed method is evaluated by comparing the numerical simulation results with the experimental results. This process can also be applied to many different mechanical behaviors of materials.