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Study on the fatigue strength of AA 6082-T6 adhesive lap joints

2009-03Journal article Open access
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorPereira, António
dc.contributor.authorFerreira, J.M.
dc.contributor.authorAntunes, F.V.
dc.contributor.authorBartolo, Paulo
dc.date.accessioned2025-05-12T10:24:32Z
dc.date.available2025-05-12T10:24:32Z
dc.date.issued2009-03
dc.description.abstractA research study on the fatigue behaviour of aluminium alloy adhesive lap joints was carried out to understand the effect of surface pre-treatment and adherends thickness on the fatigue strength of adhesive joints. The adherend material used for the experimental tests was an aluminium alloy 6082-T6 in the form of thin sheets, and the adhesive used was a high strength epoxy (Araldite 420 A/B). The surface preparation included an abrasive preparation (AP joints) and sodium dichromate-sulphuric acid etch (CSA joints). A maximum fatigue strength was obtained for the CSA surface treatment with a 1.0 mm adherends' thickness. The fastest fatigue damage was related with a high surface roughness and a high stress perpendicular to adhesive surface, which helps to promote the adhesive failure. A numerical analysis was also performed to understand the effect of the adherends thickness on the stress level. Results showed an increase of the out-of-plane peak stresses with the increase of adherends thickness.eng
dc.identifier.citationA.M. Pereira, J.M. Ferreira, F.V. Antunes, P.J. Bártolo, Study on the fatigue strength of AA 6082-T6 adhesive lap joints, International Journal of Adhesion and Adhesives, Volume 29, Issue 6, 2009, Pages 633-638, ISSN 0143-7496, https://doi.org/10.1016/j.ijadhadh.2009.02.009.
dc.identifier.doi10.1016/j.ijadhadh.2009.02.009
dc.identifier.issn0143-7496
dc.identifier.urihttp://hdl.handle.net/10400.8/12867
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0143749609000268
dc.relation.ispartofInternational Journal of Adhesion and Adhesives
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAluminium and alloys
dc.subjectSurface treatment
dc.subjectFinite element stress analysis
dc.subjectFatigue
dc.titleStudy on the fatigue strength of AA 6082-T6 adhesive lap jointseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage638
oaire.citation.issue6
oaire.citation.startPage633
oaire.citation.titleInternational Journal of Adhesion and Adhesives
oaire.citation.volume29
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePereira
person.familyNameBartolo
person.givenNameAntónio
person.givenNamePaulo
person.identifier203086
person.identifier.ciencia-id3E1F-25F1-8519
person.identifier.ciencia-id5810-9BF9-4522
person.identifier.orcid0000-0003-1219-0596
person.identifier.orcid0000-0003-3683-726X
person.identifier.ridN-4246-2013
person.identifier.ridF-2421-2013
person.identifier.scopus-author-id55989034000
person.identifier.scopus-author-id6603353041
relation.isAuthorOfPublication323d37cc-43ff-467a-b882-ac7363e5859c
relation.isAuthorOfPublicationab44d1ae-46d0-45c2-b19f-200024b5a990
relation.isAuthorOfPublication.latestForDiscovery323d37cc-43ff-467a-b882-ac7363e5859c

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A research study on the fatigue behaviour of aluminium alloy adhesive lap joints was carried out to understand the effect of surface pre-treatment and adherends thickness on the fatigue strength of adhesive joints. The adherend material used for the experimental tests was an aluminium alloy 6082-T6 in the form of thin sheets, and the adhesive used was a high strength epoxy (Araldite 420 A/B). The surface preparation included an abrasive preparation (AP joints) and sodium dichromate-sulphuric acid etch (CSA joints). A maximum fatigue strength was obtained for the CSA surface treatment with a 1.0 mm adherends' thickness. The fastest fatigue damage was related with a high surface roughness and a high stress perpendicular to adhesive surface, which helps to promote the adhesive failure. A numerical analysis was also performed to understand the effect of the adherends thickness on the stress level. Results showed an increase of the out-of-plane peak stresses with the increase of adherends thickness.
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