A simplified pseudo inverse approach for damage modeling in the cold forging process

Halouani, A.; Li, Y. M.; Abbès, B.; Guo, Y. Q.
May 2013
AIP Conference Proceedings;May2013, Vol. 1532 Issue 1, p324
Academic Journal
This paper presents a simplified numerical method called "Pseudo Inverse Approach" (PIA) for damage prediction in metal forging process modeling and optimization. The approach is based on the knowledge of the final part shape. Some intermediate configurations are introduced and corrected by using a free surface method to consider the deformation paths. Based on the equivalent stress notion and tensile curve, a robust direct algorithm of plasticity is formulated and implemented. The plasticity is coupled with the ductile damage by using a strain based ductile damage model. The forging results obtained by the PIA are compared to those obtained by an incremental approach to show the efficiency and accuracy of the PIA, as well as the abilities to make the damage prediction.


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