| 李光耀.三维板料成形过程的显式有限元分析[J].计算力学学报,1996,13(3): |
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| 三维板料成形过程的显式有限元分析 |
| Dynamic explicit finite element analysis for 3D sheet forming processes |
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| DOI：10.7511/jslx19963039 |
| 中文关键词: 壳体 接触 有限元 |
| 英文关键词:sheet,aontact,FEM, |
| 基金项目:国家自然科学基金 |
| 李光耀 |
| 湖南大学工程软件研究所 |
| 摘要点击次数: 1401 |
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| 中文摘要: |
| 本文采用基于随动坐标系的假定应变域壳单元及显式有限元格式求解三维板料成形问题。板材料服从Ｈｉｌ各向异性弹塑性准则，板料与模具之间的接触界面由主仆面接触搜寻法处理，接触力由罚参数法计算。文中给出了几个三维成形过程的计算实例。数值算例表明，本文方法具有较高的计算精度和计算效率，可在微机上分析中等复杂程度的成形过程 |
| 英文摘要: |
| 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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