Nonlinear analysis of structural elements under unilateral contact constraints by a Ritz type approach.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSilveira, Ricardo Azoubel da Mota-
Autor(es): dc.creatorPereira, Wellington L. A.-
Autor(es): dc.creatorGonçalves, Paulo Batista-
Data de aceite: dc.date.accessioned2019-11-06T13:29:39Z-
Data de disponibilização: dc.date.available2019-11-06T13:29:39Z-
Data de envio: dc.date.issued2013-10-21-
Data de envio: dc.date.issued2013-10-21-
Data de envio: dc.date.issued2008-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/123456789/3375-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/556485-
Descrição: dc.descriptionA nonlinear modal solution methodology capable of solving equilibrium and stability problems of uni-dimensional structural elements (beams, columns and arches) with unilateral contact constraints is presented in this work. The contact constraints are imposed by an elastic foundation of the Winkler type, where special attention is given to the case in which the foundation reacts in compression only, characterizing the contact as unilateral. A Ritz type approach with moveable boundaries, where the coordinates defining the limits of the contact regions are considered as additional variables of the problem, is proposed to solve this class of unilateral contact problems. The methodology is illustrated by particular problems involving beams, beam-columns and arches, and the results are compared with available results obtained by finite element and mathematical programming techniques. It is concluded that the Ritz type approach proposed is particularly suited for the analysis of structural problems where the number, but not the length, of the contact regions between the bodies are known a priori. Therefore, it can substitute in these cases finite element applications and be used as a benchmark for more general and complex formulations as well.-
Idioma: dc.languageen-
Direitos: dc.rightsOs artigos publicados no International Journal of Solids and Structures se tornam de acesso aberto após um período de embargo, que começa a partir da data de publicação final do artigo. Todos podem ler e baixar artigos de acesso aberto com reuso permitido. Embargo: 24 meses. Fonte: Elsevier http://www.elsevier.com/about/open-access/open-archives-
Palavras-chave: dc.subjectUnilateral contact-
Palavras-chave: dc.subjectStability-
Palavras-chave: dc.subjectRitz method-
Palavras-chave: dc.subjectTensionless foundation-
Palavras-chave: dc.subjectNonlinear structural analysis-
Título: dc.titleNonlinear analysis of structural elements under unilateral contact constraints by a Ritz type approach.-
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