Accuracy of Variational Formulation to Model the Thermomechanical Problem and to Predict Failure in Metallic Materials

The main purpose of this study is to develop a variational formulation for predicting structure behavior and accounting damage mechanics in metallic materials. Mechanical coupled thermomechanical models are used predict failure manufacturing processes. Ductile accompanied by significant amount plastic deformation structural components. Finite element simulation evolution ductile solids presented paper. Uncoupled implemented finite model simulating deep drawing as well cutting Based on the Johnson–Cook model, effect flow stress described. combined strain, strain rate, temperature plasticity processes considered. accuracy these verified when forming