| 中厚板CO2多层多道焊对接接头焊接残余应力及其分布 |
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| 引用本文： | 张敏,周小华,李继红,王莹.中厚板CO2多层多道焊对接接头焊接残余应力及其分布[J].西安理工大学学报,2007,23(4):394-397. |
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| 作者姓名： | 张敏 周小华 李继红 王莹 |
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| 作者单位： | 西安理工大学,材料科学与工程学院,陕西,西安,710048 |
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| 摘 要： | 阐述了焊接残余应力场数值分析的理论基础,确定了计算模型,并采用有限元数值方法模拟计算了CO2多层多道焊对接接头焊接残余应力的大小及其分布。算例结果表明,模拟结果与试验测试结果基本吻合,证明本文方法正确且有效。
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| 关 键 词： | 残余应力 有限元 数值模拟 生死单元 |
| 文章编号： | 1006-4710（2007）04-0394-04 |
| 收稿时间： | 2007-07-16 |
| 修稿时间： | 2007年7月16日 |
Research on Finite Element of Residual Stresses of CO2 Multipass Welding in Mid-Thickness Plate |
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| ZHANG Min,ZHOU Xiao-hua,LI Ji-hong,WANG Ying.Research on Finite Element of Residual Stresses of CO2 Multipass Welding in Mid-Thickness Plate[J].Journal of Xi'an University of Technology,2007,23(4):394-397. |
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| Authors: | ZHANG Min ZHOU Xiao-hua LI Ji-hong WANG Ying |
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| Abstract: | This paper states the theoretical foundation of numerical analysis of welding residual stress field and decides the calculation model.Accordingly,the magnitude and distribution of welding residual stress in CO2 multipass welding were calculated by finite element numerical simulation.The results obtained from the calculation examples indicate that the simulation results are found to be in basic consistency with those obtained from tests,whereby proving that the method described in this paper is correct and effective. |
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| Keywords: | residual stress finite element numerical simulation birth and death of element |
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