Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends

Detalhes bibliográficos
Autor(a) principal: Pinto, A. M. G.
Data de Publicação: 2010
Outros Autores: Magalhães, A. G., Campilho, Raul, Moura, M. F. S. F. de, Baptista, A. P. 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/10400.22/4200
Resumo: Polyolefins are especially difficult to bond due to their non-polar, non-porous and chemically inert surfaces. Acrylic adhesives used in industry are particularly suited to bond these materials, including many grades of polypropylene (PP) and polyethylene (PE), without special surface preparation. In this work, the tensile strength of single-lap PE and mixed joints bonded with an acrylic adhesive was investigated. The mixed joints included PE with aluminium (AL) or carbon fibre reinforced plastic (CFRP) substrates. The PE substrates were only cleaned with isopropanol, which assured cohesive failures. For the PE CFRP joints, three different surfaces preparations were employed for the CFRP substrates: cleaning with acetone, abrasion with 100 grit sand paper and peel-ply finishing. In the PE AL joints, the AL bonding surfaces were prepared by the following methods: cleaning with acetone, abrasion with 180 and 320 grit sand papers, grit blasting and chemical etching with chromic acid. After abrasion of the CFRP and AL substrates, the surfaces were always cleaned with acetone. The tensile strengths were compared with numerical results from ABAQUS® and a mixed mode (I+II) cohesive damage model. A good agreement was found between the experimental and numerical results, except for the PE AL joints, since the AL surface treatments were not found to be effective.
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spelling Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherendsPolyethylenePolypropyleneAcrylic adhesivesSingle lap adhesive jointsMachanical strengthPolyolefins are especially difficult to bond due to their non-polar, non-porous and chemically inert surfaces. Acrylic adhesives used in industry are particularly suited to bond these materials, including many grades of polypropylene (PP) and polyethylene (PE), without special surface preparation. In this work, the tensile strength of single-lap PE and mixed joints bonded with an acrylic adhesive was investigated. The mixed joints included PE with aluminium (AL) or carbon fibre reinforced plastic (CFRP) substrates. The PE substrates were only cleaned with isopropanol, which assured cohesive failures. For the PE CFRP joints, three different surfaces preparations were employed for the CFRP substrates: cleaning with acetone, abrasion with 100 grit sand paper and peel-ply finishing. In the PE AL joints, the AL bonding surfaces were prepared by the following methods: cleaning with acetone, abrasion with 180 and 320 grit sand papers, grit blasting and chemical etching with chromic acid. After abrasion of the CFRP and AL substrates, the surfaces were always cleaned with acetone. The tensile strengths were compared with numerical results from ABAQUS® and a mixed mode (I+II) cohesive damage model. A good agreement was found between the experimental and numerical results, except for the PE AL joints, since the AL surface treatments were not found to be effective.Trans Tech PublicationsRepositório Científico do Instituto Politécnico do PortoPinto, A. M. G.Magalhães, A. G.Campilho, RaulMoura, M. F. S. F. deBaptista, A. P. M.2014-03-17T15:05:29Z20102010-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/4200eng0255-547610.4028/www.scientific.net/MSF.636-637.1157metadata 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:RCAAP2023-03-13T12:44:12Zoai:recipp.ipp.pt:10400.22/4200Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:25:06.564353Repositório 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 Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
title Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
spellingShingle Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
Pinto, A. M. G.
Polyethylene
Polypropylene
Acrylic adhesives
Single lap adhesive joints
Machanical strength
title_short Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
title_full Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
title_fullStr Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
title_full_unstemmed Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
title_sort Strength prediction and experimental validation of adhesive joints including polyethylene, carbon-epoxy and aluminium adherends
author Pinto, A. M. G.
author_facet Pinto, A. M. G.
Magalhães, A. G.
Campilho, Raul
Moura, M. F. S. F. de
Baptista, A. P. M.
author_role author
author2 Magalhães, A. G.
Campilho, Raul
Moura, M. F. S. F. de
Baptista, A. P. M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Pinto, A. M. G.
Magalhães, A. G.
Campilho, Raul
Moura, M. F. S. F. de
Baptista, A. P. M.
dc.subject.por.fl_str_mv Polyethylene
Polypropylene
Acrylic adhesives
Single lap adhesive joints
Machanical strength
topic Polyethylene
Polypropylene
Acrylic adhesives
Single lap adhesive joints
Machanical strength
description Polyolefins are especially difficult to bond due to their non-polar, non-porous and chemically inert surfaces. Acrylic adhesives used in industry are particularly suited to bond these materials, including many grades of polypropylene (PP) and polyethylene (PE), without special surface preparation. In this work, the tensile strength of single-lap PE and mixed joints bonded with an acrylic adhesive was investigated. The mixed joints included PE with aluminium (AL) or carbon fibre reinforced plastic (CFRP) substrates. The PE substrates were only cleaned with isopropanol, which assured cohesive failures. For the PE CFRP joints, three different surfaces preparations were employed for the CFRP substrates: cleaning with acetone, abrasion with 100 grit sand paper and peel-ply finishing. In the PE AL joints, the AL bonding surfaces were prepared by the following methods: cleaning with acetone, abrasion with 180 and 320 grit sand papers, grit blasting and chemical etching with chromic acid. After abrasion of the CFRP and AL substrates, the surfaces were always cleaned with acetone. The tensile strengths were compared with numerical results from ABAQUS® and a mixed mode (I+II) cohesive damage model. A good agreement was found between the experimental and numerical results, except for the PE AL joints, since the AL surface treatments were not found to be effective.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01T00:00:00Z
2014-03-17T15:05:29Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/4200
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0255-5476
10.4028/www.scientific.net/MSF.636-637.1157
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dc.publisher.none.fl_str_mv Trans Tech Publications
publisher.none.fl_str_mv Trans Tech Publications
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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