Transient scattering of SH waves from an inclusion with a unilateral frictional interface—a 2D time domain boundary element analysis
Transient scattering of SH waves from an inclusion with a unilateral frictional interface—a 2D time domain boundary element analysis
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单边摩擦界面夹杂物SH波的瞬态散射——二维时域边界元分析
DOI：
10.1002/cnm.566
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发表时间：
2002
影响因子：
--
通讯作者：
Zi
中科院分区：
文献类型：
--
作者：
Yang;Yuesheng Wang;Zi
本文继承了前人的研究成果（comm numerical Meth engineering 2003; 19: 25-36），利用二维时域边界元法（BEM）求解含单边摩擦接触界面的SH波的瞬态散射问题。研究了平面波（P波和/或SV波）入射的情况。考虑了强入射波引起的界面局部滑移和分离。因此，界面涉及三种不同的未知区间：滑移区、分离区和粘滞区。为了确定未知区间，提出了一种迭代方法。作为一个例子，我们计算了P波的散射在一个圆柱体的圆形截面嵌入一个无限固体。给出了近场解的数值结果。讨论了响应波的畸变和界面状态的变化。版权所有©2004 John Wiley & Sons， Ltd
This paper is the continuity of our previous work (Commun Numer Meth Engng 2003; 19: 25–36) which applies the 2D time domain boundary element method (BEM) to solve the transient scattering of SH waves by an inclusion with a unilateral frictional contact interface. The case of the plane wave (P and/or SV wave) incidence is studied. Localized slip and separation at the interface caused by strong incident waves are considered. Therefore the interface involves three different kinds of unknown intervals: slip, separation and stick regions. In order to determine the unknown intervals, an iterative technique is developed. As an example, we compute the scattering of P waves by a cylinder of circular cross-section embedded in an infinite solid. Numerical results for the near field solutions are presented. The distortion of the response waves and the variation of the interface states are discussed. Copyright © 2004 John Wiley & Sons, Ltd.