VALIDATION OF CONSTITUTIVE-EQUATIONS FOR STEEL

High strain rate mechanical properties are a major concern for each st eel manufacturer, especially with respect to thin sheet steel used in the automotive branch. We began to study this topic by starting a proj ect with the following goals: acquiring reliable experimental data, un derstanding in depth the energy absorption in thin sheet steel and fin ding the right constitutive material equation. The first part of the p roject has been presented in [1]. In this paper we present data comput ation and comparison with the existing material model theories to expl oit the experimental data.