Abstract

In this paper a methodology is proposed to predict ductile damage in metal forming process by using a coupled thermomechanical finite element method. The simulation contains the influence of thermal effects on material properties. The interaction between the damage evolution and the temperature distribution caused by heat generation due large strains has been correctly described by the proposed model. The results obtained with simulation of sheet metal blanking process show the importance of the strong coupling between thermal effects, plasticity, and ductile damage effect at large plastic strain with contact/friction. This model can be used for the prediction of the temperature field in some dynamic metal forming or machining processes.

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