Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/101637 https://doi.org/10.1016/j.prostr.2019.08.119 |
Resumo: | Plasticity induced crack closure is considered the main mechanism related to the premature contact of the crack flanks when a crack grows under cyclic loadings. This phenomenon has been studied numerically since the early 70s, when some researchers approached to metal fatigue problems by means of the finite element analysis. The numerical analysis requires the development of a plastic wake. How this plastic wake is developed has influence on the crack closure results and a great impact on the computational cost. When running a finite element analysis, it is not possible to consider all the loading cycles involved in an experimental test. The numerical effort is not acceptable. Therefore, in this work, the crack growth scheme is analyzed. In particular, the influence of the number of loading cycles after releasing the last set of nodes on plasticity induced crack closure results is studied. A CT aluminum specimen has been modelled three-dimensionally and several simulations have been run to evaluate the influence of the loading cycles after releasing the last set of nodes. The numerical analysis is made in terms of crack closure and opening values. |
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Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closureFinite elmeent analysisplasticity induced crack closurecrack growth schemeplastic wakePlasticity induced crack closure is considered the main mechanism related to the premature contact of the crack flanks when a crack grows under cyclic loadings. This phenomenon has been studied numerically since the early 70s, when some researchers approached to metal fatigue problems by means of the finite element analysis. The numerical analysis requires the development of a plastic wake. How this plastic wake is developed has influence on the crack closure results and a great impact on the computational cost. When running a finite element analysis, it is not possible to consider all the loading cycles involved in an experimental test. The numerical effort is not acceptable. Therefore, in this work, the crack growth scheme is analyzed. In particular, the influence of the number of loading cycles after releasing the last set of nodes on plasticity induced crack closure results is studied. A CT aluminum specimen has been modelled three-dimensionally and several simulations have been run to evaluate the influence of the loading cycles after releasing the last set of nodes. The numerical analysis is made in terms of crack closure and opening values.2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/101637http://hdl.handle.net/10316/101637https://doi.org/10.1016/j.prostr.2019.08.119eng24523216Camas, D.Antunes, F.Moreno, B.Gonzalez-Herrera, A.info: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:RCAAP2022-09-06T20:42:58Zoai:estudogeral.uc.pt:10316/101637Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:18:47.364545Repositório 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 |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
title |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
spellingShingle |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure Camas, D. Finite elmeent analysis plasticity induced crack closure crack growth scheme plastic wake |
title_short |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
title_full |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
title_fullStr |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
title_full_unstemmed |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
title_sort |
Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure |
author |
Camas, D. |
author_facet |
Camas, D. Antunes, F. Moreno, B. Gonzalez-Herrera, A. |
author_role |
author |
author2 |
Antunes, F. Moreno, B. Gonzalez-Herrera, A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Camas, D. Antunes, F. Moreno, B. Gonzalez-Herrera, A. |
dc.subject.por.fl_str_mv |
Finite elmeent analysis plasticity induced crack closure crack growth scheme plastic wake |
topic |
Finite elmeent analysis plasticity induced crack closure crack growth scheme plastic wake |
description |
Plasticity induced crack closure is considered the main mechanism related to the premature contact of the crack flanks when a crack grows under cyclic loadings. This phenomenon has been studied numerically since the early 70s, when some researchers approached to metal fatigue problems by means of the finite element analysis. The numerical analysis requires the development of a plastic wake. How this plastic wake is developed has influence on the crack closure results and a great impact on the computational cost. When running a finite element analysis, it is not possible to consider all the loading cycles involved in an experimental test. The numerical effort is not acceptable. Therefore, in this work, the crack growth scheme is analyzed. In particular, the influence of the number of loading cycles after releasing the last set of nodes on plasticity induced crack closure results is studied. A CT aluminum specimen has been modelled three-dimensionally and several simulations have been run to evaluate the influence of the loading cycles after releasing the last set of nodes. The numerical analysis is made in terms of crack closure and opening values. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
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/10316/101637 http://hdl.handle.net/10316/101637 https://doi.org/10.1016/j.prostr.2019.08.119 |
url |
http://hdl.handle.net/10316/101637 https://doi.org/10.1016/j.prostr.2019.08.119 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
24523216 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
repository.mail.fl_str_mv |
|
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1799134082304573440 |