Constructing efficient substructure-based preconditioners for BEM systems of equations?

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorAraújo, Francisco Célio de-
Autor(es): dc.creatorD'Azevedo, Eduardo F.-
Autor(es): dc.creatorGray, Leonard J.-
Data de aceite: dc.date.accessioned2019-11-06T13:25:59Z-
Data de disponibilização: dc.date.available2019-11-06T13:25:59Z-
Data de envio: dc.date.issued2013-01-28-
Data de envio: dc.date.issued2013-01-28-
Data de envio: dc.date.issued2011-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/123456789/2074-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/555253-
Descrição: dc.descriptionIn this work, a generic substructuring algorithm is employed to construct global block-diagonal preconditioners for BEM systems of equations. In this strategy, the allowable fill-in positions are those on-diagonal block matrices corresponding to each BE subregion. As these subsystems are independently assembled, the preconditioner for a particular BE model, after the LU decomposition of all subsystem matrices, is easily formed. So as to highlight the efficiency of the preconditioning proposed, the Bi-CG solver, which presents a quite erratic convergence behavior, is considered. In the particular applications of this paper, 3D representative volume elements (RVEs) of carbon-nanotube (CNT) composites are analyzed. The models contain up to several tens of thousands of degrees of freedom. The efficiency and relevance of the preconditioning technique is also discussed in the context of developing general (parallel) BE codes.-
Idioma: dc.languageen-
Direitos: dc.rightsO Periódico Engineering Analysis with Boundary Elements concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3243640054467.-
Palavras-chave: dc.subjectSubregion by subregion algorithm-
Palavras-chave: dc.subjectSubstructure based block diagonal preconditioners-
Palavras-chave: dc.subjectKrylov solvers-
Palavras-chave: dc.subject3D boundary element models-
Título: dc.titleConstructing efficient substructure-based preconditioners for BEM systems of equations?-
Aparece nas coleções:Repositório Institucional - UFOP

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