Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/10400.22/9248 |
Resumo: | The recent enhancements in structural adhesives technology enabled the use of adhesive joints and repairs in several industrial fields. The scarf repair is the most efficient because of suppression of peel (σ) and shear (τ) peak stresses, arising from the tapered adherend edges. The repair of structures that have the requirement of flush surfaces is one of the major applications of the scarf geometry. This work is a numerical study on the ultimate tensile strength of two-dimensional (2D) scarf repairs of aluminum structures with external doublers as reinforcements. Two adhesives were considered: the brittle epoxy Araldite® AV138 and the ductile epoxy Araldite® 2015 (Huntsmann, Basel, Switzerland). The numerical analysis by finite elements (FE) was performed in Abaqus® (Dassault Systèmes, Vélizy-Villacoublay, France) and used cohesive zone models (CZM), thus enabling the strength prediction of the repairs. Validation of this methodology with scarf repair experiments was performed previously. The influence of the main reinforcement geometric parameters is studied for the two adhesives, such as doubler thickness and edge geometry. This work enabled to conclude that the repairs’ strength can be optimized by a significant amount by a careful selection of the doubler geometry, and that the results are dependent on the adhesive ductility. |
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Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive RepairsCohesive zone modelsFailure analysisFinite elementsScarf repairsStructural adhesiveThe recent enhancements in structural adhesives technology enabled the use of adhesive joints and repairs in several industrial fields. The scarf repair is the most efficient because of suppression of peel (σ) and shear (τ) peak stresses, arising from the tapered adherend edges. The repair of structures that have the requirement of flush surfaces is one of the major applications of the scarf geometry. This work is a numerical study on the ultimate tensile strength of two-dimensional (2D) scarf repairs of aluminum structures with external doublers as reinforcements. Two adhesives were considered: the brittle epoxy Araldite® AV138 and the ductile epoxy Araldite® 2015 (Huntsmann, Basel, Switzerland). The numerical analysis by finite elements (FE) was performed in Abaqus® (Dassault Systèmes, Vélizy-Villacoublay, France) and used cohesive zone models (CZM), thus enabling the strength prediction of the repairs. Validation of this methodology with scarf repair experiments was performed previously. The influence of the main reinforcement geometric parameters is studied for the two adhesives, such as doubler thickness and edge geometry. This work enabled to conclude that the repairs’ strength can be optimized by a significant amount by a careful selection of the doubler geometry, and that the results are dependent on the adhesive ductility.Taylor & FrancisRepositório Científico do Instituto Politécnico do PortoMoreira, R.D.F.Campilho, Raul20162116-01-01T00:00:00Z2016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/9248enghttp://dx.doi.org/10.1080/00218464.2015.1095639metadata 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:RCAAP2023-03-13T12:50:25Zoai:recipp.ipp.pt:10400.22/9248Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:29:50.946277Repositório 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 |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
title |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
spellingShingle |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs Moreira, R.D.F. Cohesive zone models Failure analysis Finite elements Scarf repairs Structural adhesive |
title_short |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
title_full |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
title_fullStr |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
title_full_unstemmed |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
title_sort |
Parametric Study of the Reinforcement Geometry on Tensile Loaded Scarf Adhesive Repairs |
author |
Moreira, R.D.F. |
author_facet |
Moreira, R.D.F. Campilho, Raul |
author_role |
author |
author2 |
Campilho, Raul |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Moreira, R.D.F. Campilho, Raul |
dc.subject.por.fl_str_mv |
Cohesive zone models Failure analysis Finite elements Scarf repairs Structural adhesive |
topic |
Cohesive zone models Failure analysis Finite elements Scarf repairs Structural adhesive |
description |
The recent enhancements in structural adhesives technology enabled the use of adhesive joints and repairs in several industrial fields. The scarf repair is the most efficient because of suppression of peel (σ) and shear (τ) peak stresses, arising from the tapered adherend edges. The repair of structures that have the requirement of flush surfaces is one of the major applications of the scarf geometry. This work is a numerical study on the ultimate tensile strength of two-dimensional (2D) scarf repairs of aluminum structures with external doublers as reinforcements. Two adhesives were considered: the brittle epoxy Araldite® AV138 and the ductile epoxy Araldite® 2015 (Huntsmann, Basel, Switzerland). The numerical analysis by finite elements (FE) was performed in Abaqus® (Dassault Systèmes, Vélizy-Villacoublay, France) and used cohesive zone models (CZM), thus enabling the strength prediction of the repairs. Validation of this methodology with scarf repair experiments was performed previously. The influence of the main reinforcement geometric parameters is studied for the two adhesives, such as doubler thickness and edge geometry. This work enabled to conclude that the repairs’ strength can be optimized by a significant amount by a careful selection of the doubler geometry, and that the results are dependent on the adhesive ductility. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z 2116-01-01T00:00:00Z |
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/10400.22/9248 |
url |
http://hdl.handle.net/10400.22/9248 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://dx.doi.org/10.1080/00218464.2015.1095639 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis |
publisher.none.fl_str_mv |
Taylor & Francis |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799131394712010752 |