| 多洞室对矢量波散射引起半空间表面位移的边界元解 |
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| 引用本文： | 熊体凡,钟伟芳.多洞室对矢量波散射引起半空间表面位移的边界元解[J].固体力学学报,1999,20(3):226-230. |
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| 作者姓名： | 熊体凡 钟伟芳 |
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| 作者单位： | 华中理工大学力学系,武汉,430074 |
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| 摘 要： | 采用边界元方法研究了半空间中近表面多洞室对矢量波的散射问题，给出了以全空间格林函数为基本解且半空间表面离散的边界积分方程，在这一边界各分方程中，较好的消除了主值积分，在半空间表面进行离散时，采用无限单元与有限单元相结合的方法，大大减少了计算量，提出了精度。
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| 关 键 词： | 无限边界元 矢量波 散射 表面离散 主值积分 |
GROUND MOTION DUE TO P WAVE SCATTERING BYMULTI-HOLE IN HALF-SPACE |
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| Xiong Tifan,Zhong Weifang.GROUND MOTION DUE TO P WAVE SCATTERING BYMULTI-HOLE IN HALF-SPACE[J].Acta Mechnica Solida Sinica,1999,20(3):226-230. |
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| Authors: | Xiong Tifan Zhong Weifang |
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| Abstract: | Vector boundary integral equations (BIE's) are presented with Stokes' (full-space) fundamental tensors, for the scattering of time-harmonic elastic waves by cavity embedded in a homogeneous, isotropic, linear-elastic half-space. Numerical work is based on BIE's free from principal-value integrals. A type of infinite boundary elements (IBE) is presented for discretizing the half-space surface. Through the analysis of the scattering of planar P waves by two infinite-long cylindrical canyon, excellent accuracy and high efficiency has been achieved. |
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| Keywords: | infinite boundary element(IBE) vector-wave scattering discretization of half-space surface principal-value integrals |
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