| 弹性约束半空间内浅埋圆孔对SH波的散射 |
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| 引用本文： | 史文谱,李莉,张春萍,李禄昌.弹性约束半空间内浅埋圆孔对SH波的散射[J].机械强度,2009,31(5). |
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| 作者姓名： | 史文谱 李莉 张春萍 李禄昌 |
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| 作者单位： | 烟台大学,机电汽车工程学院,烟台,264005 |
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| 基金项目： | 山东省科技攻关项目资助 |
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| 摘 要： | 利用复变函数法和多极坐标移动技术求解讨论弹性约束边界半空间内浅埋圆孔对稳态入射平面SH(shearing horizontal,反平面剪切)波的散射问题.为了克服直接构造波函数场的困难,采用一个半径很大的圆孔边界来拟合半空间的直边界,因而原来问题即转化为无限大空间内大圆孔和小圆孔对入射平面SH波的散射问题.文中具体讨论小圆孔边界处的动应力集中系数随无量纲波数、入射波入射角的变化情况,算例结果表明文中处理方法是合理的.
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| 关 键 词： | 半空间 弹性约束 SH(shearing horizontal)波散射 多极坐标变换 动应力集中系数 |
SCATTERING OF SH-WAVE TO THE CIRCULAR CAVITY IN THE HALF-SPACE WITH ELASTIC CONSTRAINT ACTING ON THE STRAIGHT BOUNDARY |
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| SHI WenPu,LI Li,ZHANG ChunPing,LI LuChang.SCATTERING OF SH-WAVE TO THE CIRCULAR CAVITY IN THE HALF-SPACE WITH ELASTIC CONSTRAINT ACTING ON THE STRAIGHT BOUNDARY[J].Journal of Mechanical Strength,2009,31(5). |
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| Authors: | SHI WenPu LI Li ZHANG ChunPing LI LuChang |
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| Affiliation: | SHI WenPu LI Li ZHANG ChunPing LI LuChang(School of Electromechanical Automobile Engineering,Yantai University,Yantai 264005,China) |
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| Abstract: | Complex method and multi-polar coordinate transformation are used here to study the scattering problem of SH(shearing horizontal)-wave to the circular cavity in the half-space with elastic constraints acting on the straight boundary.In order to overcome the difficulties of constructing the wave function field directly,a large circular cavity is utilized to replace the straight boundary of the half-space,so the original problem is transformed into the scattering problem of SH-wave to a large and a small circ... |
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| Keywords: | Half space Elastic constraint Scattering of SH(shearing horizontal)-wave Multi-polar coordinate Transformation Dynamic concentration factor |
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