| 瞬态耦合热弹塑性接触有限元分析方法 |
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| 引用本文： | 李润方,李健,林腾蛟. 瞬态耦合热弹塑性接触有限元分析方法[J]. 计算力学学报, 1993, 10(3) |
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| 作者姓名： | 李润方 李健 林腾蛟 |
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| 作者单位： | 重庆大学 630044(李润方，李健)，重庆大学 630044(林腾蛟) |
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| 摘 要： | 在弹性接触问题有限元混合法的基础上,把材料非线性和表面非线性两种迭代过程耦合,在瞬态温度场分析中将伽辽金法和向后差分法结合,并用混合法进行热接触迭代,把瞬态温度场分析和弹塑性接触分析耦合。提出了一种瞬态耦合热弹塑性接触有限元分析方法,并已成功地用于核容器的密封分析。
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| 关 键 词： | 有限元法 瞬态热传导 接触问题 弹塑性问题 |
Finite Element Method of Transient Coupled Thermo-Elastoplastic Contact Problem |
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| Li Runfang,Li Jian,Lin Tengjiao. Finite Element Method of Transient Coupled Thermo-Elastoplastic Contact Problem[J]. Chinese Journal of Computational Mechanics, 1993, 10(3) |
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| Authors: | Li Runfang Li Jian Lin Tengjiao |
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| Abstract: | Based on the finite element mixed formulas of elastic contact analysis, two iterative procedures including material nonlinearity and surface nonlinearity are considered. The Galerkin method and the backward-difference process are used to calculate transient temperature field. A mixed formula in finite element analysis is also adopted to solve heat transfer problem on contact boundary. Then, the analysis of transient conduction are coupled with the elastoplastic contact analysis. A finite element method of transient coupled thermo-elastoplastic contact problem is proposed. It has been successfully used in sealing analysis of nuclear pressure vessel. |
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| Keywords: | finite element method transient heat transfer contact problem elastoplastic problem |
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