| 边界元辅助焊接残余应力计测的研究 |
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| 引用本文： | 邓化凌,马杭.边界元辅助焊接残余应力计测的研究[J].山东电力高等专科学校学报,1999(1). |
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| 作者姓名： | 邓化凌 马杭 |
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| 作者单位： | 山东电力高等专科学校!济南250002(邓化凌)，甘肃工业大学!兰州730050(马杭) |
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| 摘 要： | 提出了边界元辅助焊接残余应力的无损测试方法,该方法将焊接变形作为已知边界条件,通过边界积分方程及其离散形式──边界元法来求解焊接残余应力,推导出了计算公式,构造了算法和步骤,编制了相应的计算机程序,通过用应力释放法对几块典型焊接试板中的二维焊接残余应力进行实测,验证了该方法的合理性与可行性。
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| 关 键 词： | 焊接残余应力 焊接变形 边界元 初应变 无损测试 |
Investigation on Determination of the BEM Aided Welding Residual Stresses |
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| Deng Hualin,Ma Hang.Investigation on Determination of the BEM Aided Welding Residual Stresses[J].Journal of Shandong College of Electric Power,1999(1). |
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| Authors: | Deng Hualin Ma Hang |
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| Affiliation: | Deng Hualin Ma Hang |
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| Abstract: | A nondestrucive testing prcedure is proposed in the paper to determine the welding residual stresses with the aid of boundany element method, in which the welding deformations of the welded structures are taken as the known boundary conditions, through the boundary integral equation and its discrete form BDM, the problem of welding residual stresses is resolved. Its responsibility and feasibility are checked through measuring the two dimensional welding residual stresses on several typical welding test plates. |
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| Keywords: | welding residual stresses welding deformations boundary element method initial strain nondestructive testing |
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