Finite element meshes for optimal modelling of plasticity induced crack closure

Detalhes bibliográficos
Autor(a) principal: Antunes, F.V.
Data de Publicação: 2015
Outros Autores: Camas, D., Correia, L.M., Branco, R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.11/5522
Resumo: The main goal here is to optimise the finite element mesh used to predict plasticity induced crack closure (PICC). A numerical model was developed for a M(T) specimen made of 6016-T4 aluminium alloy. The parameters studied were the size of most refined region perpendicularly to crack flank (ym) and along propagation direction (xr), the size of finite elements near crack tip (L1) and the vertical size of refinement close to crack flank (yA/B). A maximum size of about 1.3mm was found for ym, but a smaller value has a limited impact on PICC. An analytical expression was proposed for xr, dependent on δK and Kmax. An optimum value seems to exist for L1.
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spelling Finite element meshes for optimal modelling of plasticity induced crack closurePlasticity induced crack closureFinite element meshCrack tip plastic deformationReversed plastic deformationThe main goal here is to optimise the finite element mesh used to predict plasticity induced crack closure (PICC). A numerical model was developed for a M(T) specimen made of 6016-T4 aluminium alloy. The parameters studied were the size of most refined region perpendicularly to crack flank (ym) and along propagation direction (xr), the size of finite elements near crack tip (L1) and the vertical size of refinement close to crack flank (yA/B). A maximum size of about 1.3mm was found for ym, but a smaller value has a limited impact on PICC. An analytical expression was proposed for xr, dependent on δK and Kmax. An optimum value seems to exist for L1.ElsevierRepositório Científico do Instituto Politécnico de Castelo BrancoAntunes, F.V.Camas, D.Correia, L.M.Branco, R.2017-04-11T16:42:13Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.11/5522engANTUNES, F.V. [et al.] (2015) - Finite element meshes for optimal modelling of plasticity induced crack closure. Engineering Fracture Mechanics. ISSN 0013-7944. Vol. 142, p. 184-200. Doi 10.1016/j.engfracmech.2015.06.0070013-7944http://dx.doi.org/10.1016/j.engfracmech.2015.06.007info: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:RCAAP2024-02-24T01:46:35Zoai:repositorio.ipcb.pt:10400.11/5522Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:36:15.939892Repositório 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 Finite element meshes for optimal modelling of plasticity induced crack closure
title Finite element meshes for optimal modelling of plasticity induced crack closure
spellingShingle Finite element meshes for optimal modelling of plasticity induced crack closure
Antunes, F.V.
Plasticity induced crack closure
Finite element mesh
Crack tip plastic deformation
Reversed plastic deformation
title_short Finite element meshes for optimal modelling of plasticity induced crack closure
title_full Finite element meshes for optimal modelling of plasticity induced crack closure
title_fullStr Finite element meshes for optimal modelling of plasticity induced crack closure
title_full_unstemmed Finite element meshes for optimal modelling of plasticity induced crack closure
title_sort Finite element meshes for optimal modelling of plasticity induced crack closure
author Antunes, F.V.
author_facet Antunes, F.V.
Camas, D.
Correia, L.M.
Branco, R.
author_role author
author2 Camas, D.
Correia, L.M.
Branco, R.
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico de Castelo Branco
dc.contributor.author.fl_str_mv Antunes, F.V.
Camas, D.
Correia, L.M.
Branco, R.
dc.subject.por.fl_str_mv Plasticity induced crack closure
Finite element mesh
Crack tip plastic deformation
Reversed plastic deformation
topic Plasticity induced crack closure
Finite element mesh
Crack tip plastic deformation
Reversed plastic deformation
description The main goal here is to optimise the finite element mesh used to predict plasticity induced crack closure (PICC). A numerical model was developed for a M(T) specimen made of 6016-T4 aluminium alloy. The parameters studied were the size of most refined region perpendicularly to crack flank (ym) and along propagation direction (xr), the size of finite elements near crack tip (L1) and the vertical size of refinement close to crack flank (yA/B). A maximum size of about 1.3mm was found for ym, but a smaller value has a limited impact on PICC. An analytical expression was proposed for xr, dependent on δK and Kmax. An optimum value seems to exist for L1.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
2017-04-11T16:42:13Z
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/10400.11/5522
url http://hdl.handle.net/10400.11/5522
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv ANTUNES, F.V. [et al.] (2015) - Finite element meshes for optimal modelling of plasticity induced crack closure. Engineering Fracture Mechanics. ISSN 0013-7944. Vol. 142, p. 184-200. Doi 10.1016/j.engfracmech.2015.06.007
0013-7944
http://dx.doi.org/10.1016/j.engfracmech.2015.06.007
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
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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