Convolution quadrature time-domain boundary element method for 2-D and 3-D elastodynamic analyses in general anisotropic elastic solids

被引：21

作者：

Furukawa, Akira ^{[1
]}

Saitoh, Takahiro ^{[2
]}

Hirose, Sohichi ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Informat Sci & Engn, Dept Mech & Environm Informat, Meguro Ku, Tokyo 1528552, Japan

[2] Gunma Univ, Fac Sci & Technol, Div Environm Engn Sci, Kiryu, Gunma 3768515, Japan

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2014年 / 39卷

关键词：

Boundary element method; Convolution quadrature method; General anisotropy; DYNAMIC CRACK ANALYSIS; BEM; DISCRETIZATION; FORMULATION; SCATTERING;

D O I：

10.1016/j.enganabound.2013.11.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a convolution quadrature time-domain boundary element method for 2-D and 3-D elastic wave propagation in general anisotropic solids. A boundary element method (BEM) has been developed as an effective and accurate numerical approach for wave propagation problems. However, a conventional time-domain BEM has a critical disadvantage; it produces unstable numerical solutions for a small time increment. To overcome this disadvantage, in this paper, a convolution quadrature method (CQM) is applied to the time-discretization of boundary integral equations in 2-D and 3-D general anisotropic solids. As numerical examples, the problems of elastic wave scattering by a cavity are solved to validate the present method. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：64 / 74

页数：11

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