Uncertainty analysis based on sensitivity applied to angle-ply composite structures

Detalhes bibliográficos
Autor(a) principal: António, Carlos Conceição
Data de Publicação: 2007
Outros Autores: Hoffbauer, Luísa N.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/3855
Resumo: This article describes a finite element-based formulation for the statistical analysis of the response of stochastic structural composite systems whose material properties are described by random fields. A first-order technique is used to obtain the second-order statistics for the structural response considering means and variances of the displacement and stress fields of plate or shell composite structures. Propagation of uncertainties depends on sensitivities taken as measurement of variation effects. The adjoint variable method is used to obtain the sensitivity matrix. This method is appropriated for composite structures due to the large number of random input parameters. Dominant effects on the stochastic characteristics are studied analyzing the influence of different random parameters. In particular, a study of the anisotropy influence on uncertainties propagation of angle-ply composites is carried out based on the proposed approach.
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spelling Uncertainty analysis based on sensitivity applied to angle-ply composite structuresUncertainty propagationSensitivity analysisFirst-order analysisAngle-ply compositesThis article describes a finite element-based formulation for the statistical analysis of the response of stochastic structural composite systems whose material properties are described by random fields. A first-order technique is used to obtain the second-order statistics for the structural response considering means and variances of the displacement and stress fields of plate or shell composite structures. Propagation of uncertainties depends on sensitivities taken as measurement of variation effects. The adjoint variable method is used to obtain the sensitivity matrix. This method is appropriated for composite structures due to the large number of random input parameters. Dominant effects on the stochastic characteristics are studied analyzing the influence of different random parameters. In particular, a study of the anisotropy influence on uncertainties propagation of angle-ply composites is carried out based on the proposed approach.ElsevierRepositório Científico do Instituto Politécnico do PortoAntónio, Carlos ConceiçãoHoffbauer, Luísa N.2014-02-12T11:51:00Z20072007-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/3855eng0951-832010.1016/j.ress.2006.09.006info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T12:43:42Zoai:recipp.ipp.pt:10400.22/3855Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:24:50.251470Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Uncertainty analysis based on sensitivity applied to angle-ply composite structures
title Uncertainty analysis based on sensitivity applied to angle-ply composite structures
spellingShingle Uncertainty analysis based on sensitivity applied to angle-ply composite structures
António, Carlos Conceição
Uncertainty propagation
Sensitivity analysis
First-order analysis
Angle-ply composites
title_short Uncertainty analysis based on sensitivity applied to angle-ply composite structures
title_full Uncertainty analysis based on sensitivity applied to angle-ply composite structures
title_fullStr Uncertainty analysis based on sensitivity applied to angle-ply composite structures
title_full_unstemmed Uncertainty analysis based on sensitivity applied to angle-ply composite structures
title_sort Uncertainty analysis based on sensitivity applied to angle-ply composite structures
author António, Carlos Conceição
author_facet António, Carlos Conceição
Hoffbauer, Luísa N.
author_role author
author2 Hoffbauer, Luísa N.
author2_role author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv António, Carlos Conceição
Hoffbauer, Luísa N.
dc.subject.por.fl_str_mv Uncertainty propagation
Sensitivity analysis
First-order analysis
Angle-ply composites
topic Uncertainty propagation
Sensitivity analysis
First-order analysis
Angle-ply composites
description This article describes a finite element-based formulation for the statistical analysis of the response of stochastic structural composite systems whose material properties are described by random fields. A first-order technique is used to obtain the second-order statistics for the structural response considering means and variances of the displacement and stress fields of plate or shell composite structures. Propagation of uncertainties depends on sensitivities taken as measurement of variation effects. The adjoint variable method is used to obtain the sensitivity matrix. This method is appropriated for composite structures due to the large number of random input parameters. Dominant effects on the stochastic characteristics are studied analyzing the influence of different random parameters. In particular, a study of the anisotropy influence on uncertainties propagation of angle-ply composites is carried out based on the proposed approach.
publishDate 2007
dc.date.none.fl_str_mv 2007
2007-01-01T00:00:00Z
2014-02-12T11:51:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/3855
url http://hdl.handle.net/10400.22/3855
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0951-8320
10.1016/j.ress.2006.09.006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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