| 加层半空间硬币形交界裂纹的弹性波散射(英文) |
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| 引用本文： | 马兴瑞,邹振祝,黄文虎.加层半空间硬币形交界裂纹的弹性波散射(英文)[J].哈尔滨工业大学学报,1987(4). |
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| 作者姓名： | 马兴瑞 邹振祝 黄文虎 |
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| 作者单位： | 哈尔滨工业大学飞行动力学研究室
(马兴瑞，邹振祝)，哈尔滨工业大学飞行动力学研究室(黄文虎) |
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| 摘 要： | In this paper, the scattering of elastic waves by penny-shaped interface crack in a layered half space is discussed. From the solution of an integral equation, an expression of the dynamic stress intensity factor is derived which is of partictlar significance in fracture mechanics. when the incident harmonic p wave is perpendicular to the crack face, it becomes an axisymmetric elastic dynamic problem. Suppose that a layered half space is composed of a single isotropic elastic layer and an isotropic elastic half space of a different material, and in the region o≤r≤l, z=o, there is a
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