| 剪切波作用下埋藏刚性椭圆柱与周围介质部分脱胶时的动力分析 |
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| 引用本文： | 汪越胜,王铎.剪切波作用下埋藏刚性椭圆柱与周围介质部分脱胶时的动力分析[J].固体力学学报,1995(1). |
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| 作者姓名： | 汪越胜 王铎 |
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| 作者单位： | 哈尔滨工业大学航天工程与力学系 |
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| 摘 要： | 本文利用波函数展开法和奇异积分方程技术研究了ＳＨ型反平面剪切波作用下埋藏刚性椭圆柱与周围介质部分脱胶时的动力特性．将脱胶区看作表面不相接触的椭圆弧形界面裂纹，利用波函数（Ｍａｔｈｉｅｕ函数）展开法，并引人裂纹面的位错密度函数为未知量，将问题归结为奇异积分方程，通过数值求解积分方程获得了远场和近场物理参量，并讨论了共振特性和各参数对共振的影响．
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| 关 键 词： | 弹性波散射，界面脱胶，界面裂纹，波函数，奇异积分方程 |
DYNAMIC ANALYSIS OF A BURIED RIGID ELLIPTIC CYLINDER PARTIALLY DEBONDED FROM SURROUNDING MATRIX UNDER SHEAR WAVES |
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| Wang Yuesheng,Wang Duo.DYNAMIC ANALYSIS OF A BURIED RIGID ELLIPTIC CYLINDER PARTIALLY DEBONDED FROM SURROUNDING MATRIX UNDER SHEAR WAVES[J].Acta Mechnica Solida Sinica,1995(1). |
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| Authors: | Wang Yuesheng Wang Duo |
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| Abstract: | This peper investigates the dynamic behavior of a buried rigid elliptic cylinder partially debonded from surrounding matrix under the action of anti-plane shear waves (SH waves).The debonding region is modeled as an elliptic arc-shaped interface crack with noncontacting faces. By using the wave function (Mathieu function) expansion method and introducing the dislocation density function as an unknown variable, the problem is reduced to a singular integral equation which is solved numerically tO calculate the near and far fields of the problem.The resonance of the structure and the effects of various parameters on the resonance are discussed. |
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| Keywords: | elastic wave scattering interface debonding interface crack wave functions singular integral equation |
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