Simulation of metal flow and fracture applications in orthogonal cutting, blanking, and cold extrusion
E Ceretti, E Taupin, T Altan - CIRP Annals, 1997 - Elsevier
This paper summarizes the work done on the prediction of the ductile fracture initiation and
propagation in plastic deformation processes. A commercial finite element code has been
modified and fracture criteria have been implemented for the study of material separation. In
particular, ductile fracture is simulated by deleting the mesh elements. Cracking starts when
the element damage value reaches the “critical value”, determined by experiments. The
program has been tested on several plastic processes, such as orthogonal cutting, blanking …
propagation in plastic deformation processes. A commercial finite element code has been
modified and fracture criteria have been implemented for the study of material separation. In
particular, ductile fracture is simulated by deleting the mesh elements. Cracking starts when
the element damage value reaches the “critical value”, determined by experiments. The
program has been tested on several plastic processes, such as orthogonal cutting, blanking …
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