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| Dynamic explicit finite element analysis for 3D sheet forming processes |
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| DOI：10.7511/jslx19963039 |
| KeyWord:sheet,aontact,FEM, |
| Li Guangyao |
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| Abstract: |
| A dynamic explicit type finite element method is used to simulate 3D sheet forming Processes in this paper.The 4 node quadrilateral shell element based on the formulation of the assumed strain method and co rotational coordinate system is employed.The material is assumed to satisfy Hill's anisotropic elasto plastic yield condition.The master slave algorithm is used to deal with the contact interfaces and the contact force is evaluated by penalty method .Several numerical examples were given. |
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