Ductile fracture criteria for simulating shear by node separation method |
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| Authors: | K Komori |
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| Institution: | Department of Computer Mechanical System Engineering, Daido Institute of Technology, 10-3 Takiharu-town, Minami-ward, Nagoya-city, Aichi-prefecture 457-8530, Japan |
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| Abstract: | This study is concerned with the mechanics of ductile fracture in bulk metal forming processes by a finite-element analysis and experiments. Developed is a computer program using conventional finite-element method such that the behavior of crack propagation after ductile fracture can be analyzed. The phenomenon of a material separating into two pieces upon shearing and tensile tests has been simulated using the developed computer program. Special attention is focused on the effect of various ductile fracture criteria on crack initiation and propagation during shearing and tensile tests. |
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| Keywords: | Shearing Tensile test Simulation Node separation method Rigid-plastic finite-element method Ductile fracture criteria Mises’ s yield function Gurson’ s yield function |
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