Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122008000100012 |
Resumo: | The use of cohesive damage models in fracture problems has become frequent in recent years. The objective of this work is to present a trapezoidal mixed-mode cohesive damage model appropriate for ductile adhesives in adhesively bonded joints. The proposed model replaces the solid finite elements traditionally used to simulate the adhesive layer, thus reducing the computational effort. It is known that the adhesive bulk properties are not adequate to characterize these laws. In this work, Double Cantilever Beam and End Notched Flexure tests are performed to obtain the cohesive laws of the adhesive Araldite® 2015 in pure modes I and II, respectively. The fracture energies are obtained using a new data reduction scheme based on the crack equivalent concept. The remaining cohesive parameters are obtained with an inverse method. It was verified that the numerical R-curves agree with the experimental ones. |
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Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse methodFinite Element MethodCohesive damage modelsBonded jointsFractureThe use of cohesive damage models in fracture problems has become frequent in recent years. The objective of this work is to present a trapezoidal mixed-mode cohesive damage model appropriate for ductile adhesives in adhesively bonded joints. The proposed model replaces the solid finite elements traditionally used to simulate the adhesive layer, thus reducing the computational effort. It is known that the adhesive bulk properties are not adequate to characterize these laws. In this work, Double Cantilever Beam and End Notched Flexure tests are performed to obtain the cohesive laws of the adhesive Araldite® 2015 in pure modes I and II, respectively. The fracture energies are obtained using a new data reduction scheme based on the crack equivalent concept. The remaining cohesive parameters are obtained with an inverse method. It was verified that the numerical R-curves agree with the experimental ones.Sociedade Portuguesa de Materiais2008-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122008000100012Ciência & Tecnologia dos Materiais v.20 n.1-2 2008reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122008000100012Campilho,Raul D.S.G.Moura,Marcelo F.S.F. deRamantani,Dimitra A.Gonçalves,João P.M.info:eu-repo/semantics/openAccess2024-02-06T17:01:05Zoai:scielo:S0870-83122008000100012Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:16:41.700223Repositório 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 |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
title |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
spellingShingle |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method Campilho,Raul D.S.G. Finite Element Method Cohesive damage models Bonded joints Fracture |
title_short |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
title_full |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
title_fullStr |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
title_full_unstemmed |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
title_sort |
Obtaining the cohesive laws of a trapezoidal mixed-mode damage model using an inverse method |
author |
Campilho,Raul D.S.G. |
author_facet |
Campilho,Raul D.S.G. Moura,Marcelo F.S.F. de Ramantani,Dimitra A. Gonçalves,João P.M. |
author_role |
author |
author2 |
Moura,Marcelo F.S.F. de Ramantani,Dimitra A. Gonçalves,João P.M. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Campilho,Raul D.S.G. Moura,Marcelo F.S.F. de Ramantani,Dimitra A. Gonçalves,João P.M. |
dc.subject.por.fl_str_mv |
Finite Element Method Cohesive damage models Bonded joints Fracture |
topic |
Finite Element Method Cohesive damage models Bonded joints Fracture |
description |
The use of cohesive damage models in fracture problems has become frequent in recent years. The objective of this work is to present a trapezoidal mixed-mode cohesive damage model appropriate for ductile adhesives in adhesively bonded joints. The proposed model replaces the solid finite elements traditionally used to simulate the adhesive layer, thus reducing the computational effort. It is known that the adhesive bulk properties are not adequate to characterize these laws. In this work, Double Cantilever Beam and End Notched Flexure tests are performed to obtain the cohesive laws of the adhesive Araldite® 2015 in pure modes I and II, respectively. The fracture energies are obtained using a new data reduction scheme based on the crack equivalent concept. The remaining cohesive parameters are obtained with an inverse method. It was verified that the numerical R-curves agree with the experimental ones. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122008000100012 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122008000100012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122008000100012 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Portuguesa de Materiais |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Materiais |
dc.source.none.fl_str_mv |
Ciência & Tecnologia dos Materiais v.20 n.1-2 2008 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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1799137263248998400 |