Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys

Detalhes bibliográficos
Autor(a) principal: Borrego, L. F. P.
Data de Publicação: 2017
Outros Autores: Costa, J. D., Ferreira, J. A. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/102196
https://doi.org/10.1016/j.prostr.2017.07.072
Resumo: Fatigue crack propagation tests under peak overloads, as well as High-Low and Low-High block loading sequences have been performed in aluminum alloy specimens. The observed transient crack closure level is discussed in terms of loading sequence, load change magnitude and ΔK baseline levels. The crack closure level is compared with the crack growth transients. A good agreement between experimental and predicted crack growth rates is obtained when the partial crack closure effect is properly taken into account. Therefore, plasticity-induced crack closure plays an important role on the load interaction effects observed in aluminum alloys.
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spelling Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloysblock loadingDamage Tolerance Overloadspartial crack closureplasticity-induced crack closureFatigue crack propagation tests under peak overloads, as well as High-Low and Low-High block loading sequences have been performed in aluminum alloy specimens. The observed transient crack closure level is discussed in terms of loading sequence, load change magnitude and ΔK baseline levels. The crack closure level is compared with the crack growth transients. A good agreement between experimental and predicted crack growth rates is obtained when the partial crack closure effect is properly taken into account. Therefore, plasticity-induced crack closure plays an important role on the load interaction effects observed in aluminum alloys.2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/102196http://hdl.handle.net/10316/102196https://doi.org/10.1016/j.prostr.2017.07.072eng24523216Borrego, L. F. P.Costa, J. D.Ferreira, J. A. M.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:RCAAP2022-09-27T20:42:45Zoai:estudogeral.uc.pt:10316/102196Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:19:14.506544Repositório 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 Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
title Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
spellingShingle Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
Borrego, L. F. P.
block loading
Damage Tolerance Overloads
partial crack closure
plasticity-induced crack closure
title_short Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
title_full Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
title_fullStr Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
title_full_unstemmed Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
title_sort Plasticity induced closure under variable amplitude loading in AlMgSi aluminum alloys
author Borrego, L. F. P.
author_facet Borrego, L. F. P.
Costa, J. D.
Ferreira, J. A. M.
author_role author
author2 Costa, J. D.
Ferreira, J. A. M.
author2_role author
author
dc.contributor.author.fl_str_mv Borrego, L. F. P.
Costa, J. D.
Ferreira, J. A. M.
dc.subject.por.fl_str_mv block loading
Damage Tolerance Overloads
partial crack closure
plasticity-induced crack closure
topic block loading
Damage Tolerance Overloads
partial crack closure
plasticity-induced crack closure
description Fatigue crack propagation tests under peak overloads, as well as High-Low and Low-High block loading sequences have been performed in aluminum alloy specimens. The observed transient crack closure level is discussed in terms of loading sequence, load change magnitude and ΔK baseline levels. The crack closure level is compared with the crack growth transients. A good agreement between experimental and predicted crack growth rates is obtained when the partial crack closure effect is properly taken into account. Therefore, plasticity-induced crack closure plays an important role on the load interaction effects observed in aluminum alloys.
publishDate 2017
dc.date.none.fl_str_mv 2017
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/10316/102196
http://hdl.handle.net/10316/102196
https://doi.org/10.1016/j.prostr.2017.07.072
url http://hdl.handle.net/10316/102196
https://doi.org/10.1016/j.prostr.2017.07.072
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 24523216
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