| 平面断裂动力学问题的奇异积分方程解法 |
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| 引用本文： | 陈卫江,柳春图.平面断裂动力学问题的奇异积分方程解法[J].兰州大学学报(自然科学版),1996,32(1):31-35. |
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| 作者姓名： | 陈卫江 柳春图 |
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| 作者单位： | 北京中国科学院力学研究所 |
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| 摘 要： | 使用边界积分方程理论，将瞬态平面断裂动力学问题归结结为求解一组Ｌａｐｌａｃｅ变换域上的混合型积分方程。联合使用奇异积分方程及边界元算法，再经Ｌａｐｌａｃｅ数值反演，对若干典型例子作了计算，得到了它们的动态应力强度因子。
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| 关 键 词： | 断裂动力学 数值法 应力强度因子 奇异积分方程 |
Singular Integral Equation Method for Plane Fracture Dynamic Problems |
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| Chen Weijiang, Liu Chuntu.Singular Integral Equation Method for Plane Fracture Dynamic Problems[J].Journal of Lanzhou University(Natural Science),1996,32(1):31-35. |
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| Authors: | Chen Weijiang Liu Chuntu |
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| Abstract: | By use of boundary integral equation theory, the transient fracture dynamic plane problems are reduced to solving a set of mixed-type integral equations in Laplace transform space. By combining the numerical method of singular integral equation with the boundary element method and Laplace numerical inversion, several typical examples are calculated and their dynamic stress intensity factors are obtained. |
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| Keywords: | fracture dynamics boundary integral equation numerical method dynamic SIF |
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