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
收藏
页码：64 / 74
页数：11
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