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Parallel Finite Element Analysis System Based on Domain Decomposition Method Bridges  

Lee, Joon-Seong (경기대학교 기계시스템공학과)
Shioya, Ryuji (일본 Toyo University 계산공학과)
Lee, Eun-Chul (경기대학교 대학원)
Lee, Yang-Chang (대림대학)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.22, no.1, 2009 , pp. 35-44 More about this Journal
Abstract
This paper describes an application of domain decomposition method for parallel finite element analysis which is required to large scale 3D structural analysis. A parallel finite element method system which adopts a domain decomposition method is developed. Node is generated if its distance from existing node points is similar to the node spacing function at the point. The node spacing function is well controlled by the fuzzy knowledge processing. The Delaunay triangulation method is introduced as a basic tool for element generation. Domain decomposition method using automatic mesh generation system holds great benefits for 3D analyses. Aa parallel numerical algorithm for the finite element analyses, domain decomposition method was combined with an iterative solver, i.e. the conjugate gradient(CG) method where a whole analysis domain is fictitiously divided into a number of subdomains without overlapping. Practical performance of the present system are demonstrated through several examples.
Keywords
delaunay triangulation method; automatic mesh generation; domain decomposition method; parallel computing; finite element analysis; conjugate gradient;
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Times Cited By KSCI : 2  (Citation Analysis)
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