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On FEM‐BEM coupling for fluid‐structure interaction analyses in the time domain
Author(s) -
Estorff O. Von,
Antes H.
Publication year - 1991
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620310609
Subject(s) - finite element method , boundary element method , coupling (piping) , fluid–structure interaction , boundary (topology) , boundary knot method , domain (mathematical analysis) , extended finite element method , linear elasticity , computer science , mathematical analysis , mathematics , structural engineering , engineering , mechanical engineering
The investigation of coupled fluid‐structure systems, subjected to dynamic loads, calls for the use of discrete techniques such as the finite element method (FEM) and the boundary element method (BEM). This paper reports on the development of a FEM‐BEM coupling procedure, where finite elements are used to model the linear elastic structure, while the adjacent fluid is represented by boundary elements. The new approach is formulated entirely in the time domain to be extensible to non‐linear problems. Various numerical calculations are presented which clearly demonstrate the applicability and the merits of the hybrid method. The obtained results are in excellent agreement with solutions stemming from a boundary element analysis which uses subdomain techniques.