Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics

Detalhes bibliográficos
Autor(a) principal: de Morais, A.B.
Data de Publicação: 2021
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/37329
Resumo: Despite providing interesting mode-mix ratios without elaborate test fixtures, asymmetrically delaminated specimens have been scarcely used for characterizing delamination resistance. This is mostly due to the elaborate analyses employed and the controversy about mode partitioning. This paper presents a beam model for asymmetrically delaminated unidirectional composite specimens. The physical meaning and underlying assumptions of the solutions obtained are clearly identified. Comparison with finite element analyses showed that the present beam model is accurate for a wide range of asymmetry and mode-mix ratios. Since it does not require complicated calculations, the beam model is well-suited for experimental data reduction. Furthermore, traction distributions near the crack-tip were found to differ from those of standard specimens, thereby increasing the interest in studying the fracture behaviour of asymmetrically delaminated specimens.
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spelling Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristicsPolymer matrix compositesFracture mechanicsDelaminationMixed-mode fractureAsymmetrically delaminated specimensDespite providing interesting mode-mix ratios without elaborate test fixtures, asymmetrically delaminated specimens have been scarcely used for characterizing delamination resistance. This is mostly due to the elaborate analyses employed and the controversy about mode partitioning. This paper presents a beam model for asymmetrically delaminated unidirectional composite specimens. The physical meaning and underlying assumptions of the solutions obtained are clearly identified. Comparison with finite element analyses showed that the present beam model is accurate for a wide range of asymmetry and mode-mix ratios. Since it does not require complicated calculations, the beam model is well-suited for experimental data reduction. Furthermore, traction distributions near the crack-tip were found to differ from those of standard specimens, thereby increasing the interest in studying the fracture behaviour of asymmetrically delaminated specimens.Elsevier2023-06-01T00:00:00Z2021-06-01T00:00:00Z2021-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37329eng0263-822310.1016/j.compstruct.2021.113745de Morais, A.B.info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:12:04Zoai:ria.ua.pt:10773/37329Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:57.540617Repositório 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 Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
title Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
spellingShingle Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
de Morais, A.B.
Polymer matrix composites
Fracture mechanics
Delamination
Mixed-mode fracture
Asymmetrically delaminated specimens
title_short Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
title_full Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
title_fullStr Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
title_full_unstemmed Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
title_sort Interlaminar fracture of asymmetrically delaminated specimens: beam modelling and noteworthy characteristics
author de Morais, A.B.
author_facet de Morais, A.B.
author_role author
dc.contributor.author.fl_str_mv de Morais, A.B.
dc.subject.por.fl_str_mv Polymer matrix composites
Fracture mechanics
Delamination
Mixed-mode fracture
Asymmetrically delaminated specimens
topic Polymer matrix composites
Fracture mechanics
Delamination
Mixed-mode fracture
Asymmetrically delaminated specimens
description Despite providing interesting mode-mix ratios without elaborate test fixtures, asymmetrically delaminated specimens have been scarcely used for characterizing delamination resistance. This is mostly due to the elaborate analyses employed and the controversy about mode partitioning. This paper presents a beam model for asymmetrically delaminated unidirectional composite specimens. The physical meaning and underlying assumptions of the solutions obtained are clearly identified. Comparison with finite element analyses showed that the present beam model is accurate for a wide range of asymmetry and mode-mix ratios. Since it does not require complicated calculations, the beam model is well-suited for experimental data reduction. Furthermore, traction distributions near the crack-tip were found to differ from those of standard specimens, thereby increasing the interest in studying the fracture behaviour of asymmetrically delaminated specimens.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-01T00:00:00Z
2021-06-01
2023-06-01T00:00:00Z
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/10773/37329
url http://hdl.handle.net/10773/37329
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0263-8223
10.1016/j.compstruct.2021.113745
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
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)
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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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