Coupling FEM and discontinuous BEM for elastostatics and fluid-structure interaction

被引：11
|
作者：
Zhang, XS [1 ]
Zhang, XX
机构：
[1] Shijiazhuang Railway Inst, Dept Engn Sci & Mech, Shijiazhuang 050043, Hebei Province, Peoples R China
[2] Univ Abertay Dundee, Sch Comp, SIMBIOS Ctr, Dundee DD1 1GH, Scotland
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2002年 / 26卷 / 08期
关键词：
FEM-BEM coupling; discontinuous BEM; fluid-structure interaction; discontinuity of traction;
D O I：
10.1016/S0955-7997(02)00031-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a new method to couple the finite element method (FEM) and the discontinuous boundary element method (BEM) for fluid-structure interaction and 2D elastostatics. The converting matrix for coupling the FEM and the discontinuous BEM is obtained in an explicit form; and the relationship between the physical variables at the FEM nodes and those at the BEM collocation points is established. The proposed method overcomes the numerical difficulties caused by the discontinuous traction and corner nodes, and was applied to a fluid-structure interaction problem in time domain, a 2D elastostatics problem and the patch test given in Lu et al. [Comput. Meth. Appl. Mech. 85 (1991) 21]. The results indicate that the proposed method is accurate and efficient. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：719 / 725
页数：7
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