| 钨合金棒材无模流变成形有限元分析 |
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| 引用本文： | 王忠堂,李国辉,郑杰,栾瑰馥.钨合金棒材无模流变成形有限元分析[J].装备环境工程,2002,20(2):14-16. |
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| 作者姓名： | 王忠堂 李国辉 郑杰 栾瑰馥 |
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| 作者单位： | 沈阳工业学院材料科学与工程系 辽宁沈阳110016
(王忠堂，李国辉)，东北大学 辽宁沈阳110006
(郑杰)，东北大学 辽宁沈阳110006(栾瑰馥) |
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| 基金项目： | 教育部青年骨干教师基金资助项目，辽宁省自然科学基金资助项目 (0 0 10 2 3) |
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| 摘 要： | 采用刚塑性有限元法分析钨合金棒材无模流变成形变形区速度场、应力场及变形力。收敛条件采用总能量泛函收敛准则、速度收敛准则、节点力不平衡量收敛准则的 3个条件同时满足的收敛判定。给出钨合金棒材无模流变成形力能参数的数值解。变形力理论计算值与实验结果相吻合 ,相对误差小于 10 %。
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| 关 键 词： | 无模流变成形 刚塑性有限元 速度场 应力场 |
| 文章编号： | 1000-8446(2002)02-0014-03 |
| 修稿时间： | 2001年11月12 |
Rigid-Plastic Finite Element Analysis during Wire Dieless Drawing of W Alloy Simulation of Wire Dieless Drawing |
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| WANG Zhong tang ,LI Guo hui ,ZHENG Jie ,LUAN Gui fu.Rigid-Plastic Finite Element Analysis during Wire Dieless Drawing of W Alloy Simulation of Wire Dieless Drawing[J].Equipment Environmental Engineering,2002,20(2):14-16. |
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| Authors: | WANG Zhong tang LI Guo hui ZHENG Jie LUAN Gui fu |
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| Institution: | WANG Zhong tang 1,LI Guo hui 1,ZHENG Jie 1,LUAN Gui fu 2 |
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| Abstract: | Rigid Plastic Finite Element Method(RPFEM) is applied extensively in modern plastic processing. Velocity field and stress field have been analysed by means of RPFEM for the first time in dieless drawing technology of W alloy. Deformation initial velocity is determined by method of function G. The convergence conditions are that convergence of total energy function, convergence of velocity correction, and convergence of node's stress inequilibrium. The velocity field and stress field and drawing force all are given by RPFEM. The calculated results of drawing force by RPFEM are approximate to that of experiment. Relative errors of drawing force to that of experiment are less than 10%. |
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| Keywords: | dieless drawing rigid plastic finite element method W alloy wire |
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