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Comparative Failure Assessment of Single and Double Lap Joints with Varying Adhesive Systems

dc.contributor.authorNunes, S.L.S.
dc.contributor.authorCampilho, Raul
dc.contributor.authorSilva, F.J.G. da
dc.contributor.authorSousa, C.C.R.G. de
dc.contributor.authorFernandes, T.A.B.
dc.contributor.authorBane, M.D.
dc.contributor.authorSilva, L.F.M. da
dc.date.accessioned2017-01-12T12:28:34Z
dc.date.embargo2116
dc.date.issued2016
dc.description.abstractJoining by adhesively bonded methods is being increasingly used in the design of mechanical structures, because of the significant benefits of this technique compared to the traditional ones. Commercial adhesives range from strong and brittle (e.g., Araldite® AV138) to less strong and ductile (e.g., Araldite® 2015). A new family of polyurethane adhesives combines high strength and ductility (e.g., Sikaforce® 7888). This work compares the tensile performance of the three aforementioned adhesive systems in single and double lap aluminum joints with varying values of overlap length (LO). A cohesive zone modeling (CZM) numerical analysis was carried out to analyze through-thickness normal and shear stresses in the adhesive layer, to study the CZM damage variable and to predict the joint strength. A comparison was also performed with simple analytical models. The stress and damage variable analyses helped in understanding the differences between adhesives in which pertains to the failure process and joint strength. The proposed work also enabled concluding that the CZM predictions are typically accurate, and which family of adhesives is more suited for each joint configuration, with clear advantage for the Sikaforce® 7888. As a result of this work, design guidelines were proposed for adhesively bonded joints.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1080/00218464.2015.1103227pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/9245
dc.language.isoengpt_PT
dc.publisherTaylor and Francis
dc.relation.ispartofseriesThe Journal of Adhesion;Vol. 92, Issue 7-9
dc.relation.publisherversionhttp://www.tandfonline.com/doi/full/10.1080/00218464.2015.1103227pt_PT
dc.subjectCohesive zone modelspt_PT
dc.subjectEpoxypt_PT
dc.subjectFinite element analysispt_PT
dc.subjectFracture mechanicspt_PT
dc.subjectPolyurethanept_PT
dc.titleComparative Failure Assessment of Single and Double Lap Joints with Varying Adhesive Systemspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage634pt_PT
oaire.citation.issue7-9pt_PT
oaire.citation.startPage610pt_PT
oaire.citation.titleThe Journal of Adhesionpt_PT
oaire.citation.volume92pt_PT
person.familyNameCampilho
person.givenNameRaul Duarte Salgueiral Gomes
person.identifier.ciencia-id0314-43B9-03D4
person.identifier.orcid0000-0003-4167-4434
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4decb370-eb85-4ee1-987f-ec328565ea07
relation.isAuthorOfPublication.latestForDiscovery4decb370-eb85-4ee1-987f-ec328565ea07

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