| 横向各向同性固体中圆柱状散射体对水平偏振剪切波的散射 |
| |
| 引用本文： | 王小民, 李明轩. 横向各向同性固体中圆柱状散射体对水平偏振剪切波的散射[J]. 声学学报, 1999, 24(6): 627-636. DOI: 10.15949/j.cnki.0371-0025.1999.06.009 |
| |
| 作者姓名： | 王小民 李明轩 |
| |
| 作者单位： | 中科学院声学研究所!北京１０００８０ |
| |
| 摘 要： | 给出横向各向同性介质中SH波的标量波动方程,并通过简单的坐标变换,将其化为标准的Helmholtz方程.建立了求解散射问题的积分方程,利用边界单元方法数值计算了横向各向同性固体中圆柱状空洞及刚性散射体对SH波的散射场分布。重点分析了各向异性对空洞散射体散射场指向性的影响.
|
| 收稿时间： | 1997-01-20 |
| 修稿时间： | 1998-04-20 |
Scattering of the cross-plane shear elastic waves by circular cylinders in transversely isotropic media |
| |
| WANG Xiaomin, LI Mingxuan. Scattering of the cross-plane shear elastic waves by circular cylinders in transversely isotropic media[J]. ACTA ACUSTICA, 1999, 24(6): 627-636. DOI: 10.15949/j.cnki.0371-0025.1999.06.009 |
| |
| Authors: | WANG Xiaomin LI Mingxuan |
| |
| Abstract: | Two-dimensional scalar equation of displacement for the cross--plane shear elastic waves in homogeneous and transversely isotropic media like unidirectional fibrous composites is derived. Then, through a simple coordinate system tranform, the scalar equation is standardized into a Helmholtz equation. Integral equations are derived for the scattering problems and boudary element method is used to calculate the scattered cross-plane wave fields by circular cylinders in transversely isotropic media numerically. A discussion is given on the results which is mainly focused on the influence of the anisotropy to the directivity of the scattered fields by circular cylindrical voids. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《声学学报》浏览原始摘要信息 |
|
点击此处可从《声学学报》下载全文 |
|
