| 不均匀性焊接接头弹塑性断裂力学问题的有限元分析 |
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| 引用本文： | 马维甸,田锡唐.不均匀性焊接接头弹塑性断裂力学问题的有限元分析[J].应用力学学报,1988(4). |
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| 作者姓名： | 马维甸 田锡唐 |
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| 作者单位： | 清华大学
(马维甸)，哈尔滨工业大学(田锡唐) |
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| 摘 要： | 本文对含裂纹焊接接头的简化模型——软夹硬不均匀裂纹体和硬夹软不均匀裂纹体——进行了弹塑性有限元分析,研究了材质力学性能不均匀性对OOD的影响规律.还研究了在静载和疲劳载荷下材质不均匀性对软夹硬不均匀体裂纹扩展行为的影响.
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| 关 键 词： | 焊接接头的断裂 计算焊接力学 裂纹 夹层 有限元分析 |
A FINITE ELEMENT ANALYSIS OF THE ELASTOPLASTIC FRACTURE MECHANICS PROBLEMS OF HETEROGENEOUS WELDED JOINTS |
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| Ma We idian.A FINITE ELEMENT ANALYSIS OF THE ELASTOPLASTIC FRACTURE MECHANICS PROBLEMS OF HETEROGENEOUS WELDED JOINTS[J].Chinese Journal of Applied Mechanics,1988(4). |
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| Authors: | Ma We idian |
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| Institution: | Ma We idian(Tsinghua University)Uian Xitang (Harbin Institute of Technology) |
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| Abstract: | In this paper, some fracture mechanics problems of cracked welded joints with material mechanical heterogeneity, simplified as heterogeneous bodies with either a hard sandwiched layer or a soft one containing a crack, are analyzed by elastoplastic FEM. The effects of the heterogeneity on COD, and the effects of the heterogeneity of the cracked body with a hard layer on crack propagation behavior both under static load and under alternative load are studied. |
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| Keywords: | fracture of welded joints computational weld mechanics crack sandwiched layer finite element analysis |
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