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界面固定圆形刚柱对SH波散射的远场解
Far Field Solution of SH-wave Scattered by Interface Cylindrical Rigid Inclusion
【摘要】 采用Green 函数方法研究界面固定圆形刚柱对SH 波散射的远场解答.首先给出含有半圆形刚柱的弹性半空间的水平表面上任意一点,承受时间谐和的出平面线源荷载作用时的位移函数.其次,取该位移函数作为Green 函数,推导出定解积分方程.最后研究该问题的散射远场,给出了散射波远场位移模式和散射截面的解答.通过具体算例,分析了不同材料组合而成的界面固定圆形刚柱对SH波散射的远场特性
【Abstract】 The far field solution of SH-wave scattered by bimaterial structure possessing interface cylindrical rigid inclusion by use of Green’s function method is investigated.Constructing a special Green’s function firstly,the integral equation is set up.The displacement mode of scattered wave at far field and scattering cross-section are given.Numerical results are illustrated and the influence of different combinations of bimaterial structure on scattered wave at far field is discussed.
【关键词】 界面固定圆形刚柱;
SH波散射;
Green函数;
散射截面;
积分方程;
【Key words】 interface cylindrical rigid inclusion; Green’s function; SH-wave scattering; displacement mode; scattering cross-section;
【Key words】 interface cylindrical rigid inclusion; Green’s function; SH-wave scattering; displacement mode; scattering cross-section;
【基金】 国家教委博士点专项科研基金
- 【文献出处】 哈尔滨工程大学学报 ,JOURNAL OF HARBIN ENGINEERING UNIVERSITY , 编辑部邮箱 ,1999年04期
- 【分类号】O347
- 【被引频次】8
- 【下载频次】97