K.F. Zhang
,
F.X. Diao
,
Q.F. Song
,
W. Wu
,
K.B. Chen and T.Xie Harbin Institute of Technology
,
Harbin 150001
,
China
金属学报(英文版)
This study is concerned with the problems of contact in the process of numerical simulation of sheet metal forming in rigid visco-plastic shell FEM. In respect of analysis of sheet deep drawing process,for the tool model described by triangular elements, a kind of contact judging algorithm about the correlation between the node of deformed mesh and the triangular element of a tool is presented. In SPF/DB Lagrangian multiplier method is adopted to solve the contact problem between deformed meshes, and a new reliable practical dynamic contact checking algorithm is presented. As computation examples, the simulation results of metal sheet deep drawing and SPF/DB are introduced in this paper.
关键词:
kcontact search algorithm
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