| 正方形弹性夹杂对裂纹应力强度因子的影响 |
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| 引用本文： | 王银邦,陆孜子. 正方形弹性夹杂对裂纹应力强度因子的影响[J]. 兰州大学学报(自然科学版), 2003, 39(6): 21-23 |
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| 作者姓名： | 王银邦 陆孜子 |
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| 作者单位： | 中国海洋大学,工程学院,山东,青岛,266071 |
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| 摘 要： | 研究无限弹性体中正方形弹性夹杂对裂纹应力强度因子的影响，给出了问题的新边界积分方程，对典型问题进行了边界元计算，所得结果表明：裂纹的应力强度因子随着夹杂弹性模量的增大而减小，软夹杂有利于裂纹的扩展，而刚性较大的夹杂对裂纹有抑制作用。
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| 关 键 词： | 边界元 正方形弹性夹杂 裂纹 应力强度因子 |
| 文章编号： | 0455-2059(2003)06-0021-03 |
| 修稿时间： | 2002-12-30 |
Effect of an elastic square inclusion on a crack tip''''s stress intensity factor |
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| WANG Yin-bang,LU Zi-zi. Effect of an elastic square inclusion on a crack tip''''s stress intensity factor[J]. Journal of Lanzhou University(Natural Science), 2003, 39(6): 21-23 |
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| Authors: | WANG Yin-bang LU Zi-zi |
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| Abstract: | The effect of an elastic square inclusion on a crack tip's stress intensity factor in an infinite elastic body is considered and the new boundary integral equations are derived.Some typical examples are given by using boundary element method,which shows that the crack stress intensity factors decrease as the shear modulus of inclusion increases.Thus,the crack propagation is easier near a softer inclusion and the harder inclusion is helpful for crack arrest. |
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| Keywords: | boundary element elastic square inclusion crack stress intensity factors |
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