Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces

Detalhes bibliográficos
Autor(a) principal: Ferreira Moreira, Raul Domingos
Data de Publicação: 2018
Outros Autores: Oliveira, Vitor, Silva, Filipe Gonçalo Andrade Da, Vilar, R., Moura, Marcelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/9088
Resumo: Mode II fracture toughness of carbon–epoxy bonded joints considering laser treated surfaces was evaluated using the End-Notched Flexure (ENF) test. Four different surface preparations were performed using distinct processing conditions before bonding the specimen arms. The Resistance-curves of the fracture tests were obtained considering an equivalent crack length based procedure. The influence of the different surface treatments on the mode II fracture behaviour was assessed comparing the average values of the fracture toughness. It was verified that a laser treatment employing two interfering laser beams, which produces a complex multi-scale surface morphology free of contaminants, is the best surface preparation regarding higher values of the mode II fracture energy. A cohesive zone analysis was used aiming to validate the followed procedures. The excellent agreement obtained between numerical and experimental results reveals that the used techniques are sound.
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spelling Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfacesCarbon–epoxy bonded jointsSurface treatmentFracture toughnessTratamento de superfíciesTenacidade à fraturaMode II fracture toughness of carbon–epoxy bonded joints considering laser treated surfaces was evaluated using the End-Notched Flexure (ENF) test. Four different surface preparations were performed using distinct processing conditions before bonding the specimen arms. The Resistance-curves of the fracture tests were obtained considering an equivalent crack length based procedure. The influence of the different surface treatments on the mode II fracture behaviour was assessed comparing the average values of the fracture toughness. It was verified that a laser treatment employing two interfering laser beams, which produces a complex multi-scale surface morphology free of contaminants, is the best surface preparation regarding higher values of the mode II fracture energy. A cohesive zone analysis was used aiming to validate the followed procedures. The excellent agreement obtained between numerical and experimental results reveals that the used techniques are sound.ElsevierRCIPLFerreira Moreira, Raul DomingosOliveira, VitorSilva, Filipe Gonçalo Andrade DaVilar, R.Moura, Marcelo2018-11-27T11:41:05Z2018-112018-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/9088engMOREIRA, R. D. F.; [et al] – Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces. International Journal of Mechanical Sciences. ISSN 0020-7403. Vol. 148 (2018), pp. 707-7130020-7403https://doi.org/10.1016/j.ijmecsci.2018.09.029metadata only accessinfo: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:RCAAP2023-08-03T09:57:22Zoai:repositorio.ipl.pt:10400.21/9088Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:17:44.076501Repositório 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 Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
title Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
spellingShingle Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
Ferreira Moreira, Raul Domingos
Carbon–epoxy bonded joints
Surface treatment
Fracture toughness
Tratamento de superfícies
Tenacidade à fratura
title_short Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
title_full Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
title_fullStr Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
title_full_unstemmed Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
title_sort Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces
author Ferreira Moreira, Raul Domingos
author_facet Ferreira Moreira, Raul Domingos
Oliveira, Vitor
Silva, Filipe Gonçalo Andrade Da
Vilar, R.
Moura, Marcelo
author_role author
author2 Oliveira, Vitor
Silva, Filipe Gonçalo Andrade Da
Vilar, R.
Moura, Marcelo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Ferreira Moreira, Raul Domingos
Oliveira, Vitor
Silva, Filipe Gonçalo Andrade Da
Vilar, R.
Moura, Marcelo
dc.subject.por.fl_str_mv Carbon–epoxy bonded joints
Surface treatment
Fracture toughness
Tratamento de superfícies
Tenacidade à fratura
topic Carbon–epoxy bonded joints
Surface treatment
Fracture toughness
Tratamento de superfícies
Tenacidade à fratura
description Mode II fracture toughness of carbon–epoxy bonded joints considering laser treated surfaces was evaluated using the End-Notched Flexure (ENF) test. Four different surface preparations were performed using distinct processing conditions before bonding the specimen arms. The Resistance-curves of the fracture tests were obtained considering an equivalent crack length based procedure. The influence of the different surface treatments on the mode II fracture behaviour was assessed comparing the average values of the fracture toughness. It was verified that a laser treatment employing two interfering laser beams, which produces a complex multi-scale surface morphology free of contaminants, is the best surface preparation regarding higher values of the mode II fracture energy. A cohesive zone analysis was used aiming to validate the followed procedures. The excellent agreement obtained between numerical and experimental results reveals that the used techniques are sound.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-27T11:41:05Z
2018-11
2018-11-01T00:00:00Z
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/10400.21/9088
url http://hdl.handle.net/10400.21/9088
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv MOREIRA, R. D. F.; [et al] – Mode II fracture toughness of carbon–epoxy bonded joints with femtosecond laser treated surfaces. International Journal of Mechanical Sciences. ISSN 0020-7403. Vol. 148 (2018), pp. 707-713
0020-7403
https://doi.org/10.1016/j.ijmecsci.2018.09.029
dc.rights.driver.fl_str_mv metadata only access
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rights_invalid_str_mv metadata only access
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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
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