On the numerical stability of time-domain elastodynamic analyses by BEM

被引：40
|
作者：
Frangi, A
Novati, G
机构：
[1] Univ Trent, Dept Mech & Struct Engn, I-38050 Trent, Italy
[2] Politecn Milan, Dept Struct Engn, I-20133 Milan, Italy
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1999年 / 173卷 / 3-4期
关键词：
D O I：
10.1016/S0045-7825(98)00294-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper the issue of the numerical stability of time-domain BE solution procedures in elastodynamics is discussed with reference to a simple benchmark problem which is apt to be analyzed in different contexts: as a I-D problem, an antiplane shear and a plane strain problem. The simplicity of the problems considered allows to pinpoint the causes of instability and to explain how the choice of the time-step and/or of the BE mesh affects the numerical solution. (C) 1999 Elsevier Science S.A. All rights reserved.
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页码：403 / 417
页数：15
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