Implementation of the Tanimura-Mimura's Strain Rate Dependent Constitutive Model in LS-DYNA Using User Defined Material Model

Tanimura-Mimura constitutive model covers a wide range of the strain rates and of a large strain, and enables us to use unified and common material constants to simulate the dynamic behaviors of materials and/or bodies. In this paper, dynamic behaviors of high speed tensile tests, buckling tests and crash test of a full vehicle are simulated by implementing this model in LS-DYNA®. Obtained numerical results are in good agreement with the experimental ones and the validity of the model has been demonstrated.