| 焊接过程的耦合三维热弹塑性有限元分析 |
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| 引用本文： | 倪强,王乘,黄玉盈,张标标.焊接过程的耦合三维热弹塑性有限元分析[J].华中科技大学学报(自然科学版),1997(1). |
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| 作者姓名： | 倪强 王乘 黄玉盈 张标标 |
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| 作者单位： | 华中理工大学土木工程系 |
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| 摘 要： | 分析了焊接过程和热力耦合的特点，提出一种新型耦合热弹塑性变分原理，考虑了大变形的影响，采用了移动热源，并分析了弹塑性加载及卸载的特性，然后在此基础上建立了一套有限元格式，最后还给出了求解的实际应用例子
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| 关 键 词： | 焊接 有限变形 耦合热弹塑性 有限元 残余应力 |
A Three Dimensional Coupled Thermal Elasto Plastic Finite Element Analysis Applied to the Welding Process |
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| Ni Qiang Doctoral Candidate, Dept. of Civil Eng.,HUST,Wuhan ,China. Wang Cheng Huang Yuying Zhang Biaobiao.A Three Dimensional Coupled Thermal Elasto Plastic Finite Element Analysis Applied to the Welding Process[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(1). |
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| Authors: | Ni Qiang Doctoral Candidate Dept of Civil Eng HUST Wuhan China Wang Cheng Huang Yuying Zhang Biaobiao |
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| Institution: | Ni Qiang Doctoral Candidate, Dept. of Civil Eng.,HUST,Wuhan 430074,China. Wang Cheng Huang Yuying Zhang Biaobiao |
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| Abstract: | The specific features of the coupling of the welding process and thermodynamics are discussed. A new coupled thermal elastoplastic variational principle is proposed. The effect of large deformation is considered and the moving heat source is used. Both elasto plastic loading and unloading are analyzed and a finite element format is developed. A practical example is given. |
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| Keywords: | welding limited deformation coupled thermal elasto plasticity FEM residual stress |
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