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Abstract:
The
large-deforming elastic-plastic finite element method is introduced into
sheet metal stamping process. Based on the rate-form principle of
virtual work, and considered of the property of which metal can not be
compressed, the formulation of FEM model is deduced. Based on this
model, the phenomenon of wrinkling occurrence and development in the
stamping process are simulated. Numerical results form two examples
illustrate the model’s validity.
Key words:
Sheet
metal stamping FEM Wrinkle
CLC No: TB115
国家高技术863计划资助项目. Received 20000419,
received in revised form 20000612
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