Abstract
The numerical simulation of the deep drawing process of the anisotropic sheet metal is carried out taking into account the influence of anisotropy on the damage during the forming process. From the results it may be concluded that as a precursor of the area endangered by ductile failure, porosity (damage variable), predicted from the anisotropic extended Gurson's model, is a material-dependent refined criteria for the formability estimation of a metal sheet and the process reliability. The results emphasize that the anisotropic extension of the Gurson model is a good method for failure assessment in the design of metal forming processes of metal sheets with anisotropic properties. The numerical simulation of complex sheet metal forming processes by means of the finite element method (FEM) is of great relevance for the industry. Redundant trial and error steps can be avoided during the die design period and thus manufacturing costs can be lowered.
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