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Abstract: The
principle of the reproducing kernel particle meshless(RKPM) method and
its application in metal forming process are presented. Using the
penalty method to impose the essential boundary conditions, corrected
integration and stablization technique are used in the integration
process. The Newton-Raphson method is used to linearization the system
equation. The deformable shape of the workpiece in next time step is
calculated with the updated nodal coordinate. The results obtained from
simulation of two dimensional upsetting process test the validity of the
reproducing kernel particle method .
Key words: Meshless Reproducing kernel particle method Rigid
slightly compressible material Upsetting
CLC No: TG113
国家973重点基础研究发展规划资助项目(G2000067208-4).
Received 20040402, received in revised form 20041210
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