| V型件翻边成形的数值模拟 |
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| 引用本文： | 罗应兵,李大永,张少睿,彭颖红,胡平.V型件翻边成形的数值模拟[J].上海交通大学学报,2004,38(8):1398-1402. |
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| 作者姓名： | 罗应兵 李大永 张少睿 彭颖红 胡平 |
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| 作者单位： | 1. 上海交通大学,机械与动力工程学院,上海,200030
2. 吉林大学,机械工程学院,长春,130025 |
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| 基金项目： | 上海市科技启明星科技跟踪计划项目(01QMH1411)，上海市博士后基金(2001)资助项目 |
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| 摘 要： | 将Mindlin曲壳单元引入基于逐级更新的虚功率增率型原理，考虑板材的厚向各向异性，建立了大变形弹塑性有限元模型．对V型零件翻边成形进行了模拟，模拟和实验结果的比较证实了本模型的有效性．基于此模型，研究了零件张角、翻边部分初始长度以及材料各向异性参数和应变硬化指数对V型零件翻边的影响．结果表明，几何形状，尤其是零件张角，对V型零件翻边成形性具有决定性的影响．
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| 关 键 词： | Mindlin曲壳单元 V型零件翻边 厚向各向异性 大变形弹塑性有限元法 |
| 文章编号： | 1006-2467(2004)08-1398-05 |
| 修稿时间： | 2003年8月5日 |
Numerical Study on Flanging of V-Shaped Sheet Metal Part |
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| LUO Ying-bing,LI Da-yong,ZHANG Shao-rui,PENG Ying-hong,HU Ping.Numerical Study on Flanging of V-Shaped Sheet Metal Part[J].Journal of Shanghai Jiaotong University,2004,38(8):1398-1402. |
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| Authors: | LUO Ying-bing LI Da-yong ZHANG Shao-rui PENG Ying-hong HU Ping |
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| Institution: | LUO Ying-bing~1,LI Da-yong~1,ZHANG Shao-rui~1,PENG Ying-hong~1,HU Ping~2 |
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| Abstract: | A large deformation elastic-plastic FEM model was built by introducing Mindlin shell element to incremental virtual work principle and considering the normal anisotropy of sheet. The flanging of V-shaped sheet metal parts was simulated, the result of simulation and experiment show that the model is effective and feasible. Based on the model, effects of flange angle, initial flange length, strain hardening exponent and normal anisotropy coefficient on the flanging of V-shaped part were unveiled from the calculated result. The results show that the geometry, especially the flange angle, is a key factor to the formability on flanging of V-shaped sheet metal parts. |
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| Keywords: | Mindlin shell element flanging of V-shaped sheet metal parts normal anisotropy large formation elastic-plastic finite element methods |
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