关键词: 并行化计算, 冲压成形, 分区, 有限元法

Abstract: According to the characteristics of finite element method and the structure of “Shengwei I” supercomputer， a parallel algorithm is designed for explicit finite element method based on message passing and domain decomposition. A new domain decomposition method is specially presented for parallelization of explicit finite element simulation of sheet metal forming. The two numerical examples show that the designed parallel finite element method with message passing and domain decomposition improve the efficiency of the simulation of sheet metal forming rapidly and an optimum PE number is given.

Key words: Domain decomposition, Finite element method, Metal forming, Parallel computation