Parallel computation for three-dimensional shell analysis of curved configuration based on domain decomposition method

•A parallel computational algorithm is developed based on FETI method with localized Lagrange multipliers.•The curved configuration ofthree-dimensional structures isconsidered by introducing rotational operators.•Practical performance of proposed algorithm is evaluated through static and dynamic ana...

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Vydáno v:Journal of computational science Ročník 24; s. 24 - 33
Hlavní autoři: Joo, HyunShig, Cho, Haeseong, Kim, Seil, Shin, SangJoon, Kwak, JunYoung
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier B.V 01.01.2018
Témata:
Finite element tearing and interconnecting (FETI)
Lagrange multiplier
Parallel algorithm
Shell element
Shell element
Lagrange multiplier
Parallel algorithm
Finite element tearing and interconnecting (FETI)
ISSN:1877-7503, 1877-7511
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Shrnutí:•A parallel computational algorithm is developed based on FETI method with localized Lagrange multipliers.•The curved configuration ofthree-dimensional structures isconsidered by introducing rotational operators.•Practical performance of proposed algorithm is evaluated through static and dynamic analysis using message passing interface (MPI). In this paper, a parallel computational algorithm is developed based on finite element tearing and interconnecting (FETI) method, specifically, localized Lagrange multipliers. The proposed FETI method decomposes large-size structures into non-overlapping subdomains via localized Lagrange multipliers. To consider the curved configuration of large-size structures, a facet shell element created by combining an optimal triangle membrane and discrete Kirchhoff triangle bending plate (OPT-DKT) is suggested and used by introducing rotational operators. Moreover, practical performance of the present OPT-DKT facet shell element is evaluated through static and dynamic analysis. Finally, parallel computation is implemented for the proposed approach using message passing interface (MPI).
ISSN:1877-7503
1877-7511
DOI:10.1016/j.jocs.2017.11.007