Abstract:
A simple and reliable contact algorithm for static-implicit FE
code is proposed. It can overcome miss-judgement and error-judgement,
and improve convergence effectively, and can apply friction
boundary condition conveniently. Based on the proposed contact
algorithm, some typical sheet metal forming processes and one
benchmark of NUMISHEET 93 are simulated by static-implicit FE
code developed by the authors and their group.
Key words: Static-implicit Sheet metal forming Contact algorithm
*
This project
is supported by Shanghai Automotive Foundation. Manuscript received on
February 9, 1999; revised manuscript September 10, 1999
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