| 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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| 瞬态耦合热弹塑性接触有限元分析方法 |
| Finite Element Method of Transient Coupled Thermo-Elastoplastic Contact Problem |
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| DOI：10.7511/jslx19933042 |
| 中文关键词: 有限元法,瞬态热传导,接触问题,弹塑性问题 |
| 英文关键词:finite element method, transient heat transfer,contact problem ,elastoplastic problem |
| 基金项目: |
| 李润方 李健 林腾蛟 |
重庆大学 630044
(李润方，李健)
，重庆大学 630044(林腾蛟)
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| 摘要点击次数: 1612 |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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