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Geometry and adhesive optimization of single-lap adhesive joints under impact

2021Journal article Restricted access
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dc.contributor.authorPeres, L.M.C.
dc.contributor.authorArnaud, M.F.T.D.
dc.contributor.authorSilva, A.F.M.V.
dc.contributor.authorCampilho, R.D.S.G.
dc.contributor.authorMachado, J.J.M.
dc.contributor.authorMarques, E.A.S.
dc.contributor.authorReis, M.Q dos
dc.contributor.authorSilva, L.F.M. da
dc.date.accessioned2023-01-26T10:40:08Z
dc.date.embargo2035
dc.date.issued2021
dc.description.abstractThe use of composite adhesive joints increased in the last decades through structural applications, comprising the aeronautical and automotive industries. Contrary to the static loading case, in many real situations, adhesive joints are subjected to impact loads, such as in the event of vehicle crashes. Despite this fact, numerical modelling of this loading type is seldom addressed in the literature. This work evaluates the effect of the overlap length (LO) and adhesive type on the strength of composite single-lap joints (SLJ), when impact loaded, through experimental tests and cohesive zone models (CZM). Two different types of adhesives were tested (Araldite® AV138 and Sikaforce® 7752), keeping constant the composite adherends with unidirectional lay-up. The joints were subjected to a drop test and validated through the numerical model, by the analysis of stresses and damage, predicting the joints’ strength for different geometries and adhesives. It was concluded that the increase of LO increases the joint strength, especially in those with a more flexible adhesive (Sikaforce® 7752), since this type of adhesive prevents significant stress concentrations, and being a ductile adhesive, provides the ability to absorb peak stresses. The impact CZM was able to predict the impact joints’ strength with good accuracy.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1080/00218464.2021.1994404pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/21881
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor and Francispt_PT
dc.relation.publisherversionhttps://www.tandfonline.com/doi/full/10.1080/00218464.2021.1994404pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectLap-shearpt_PT
dc.subjectCompositespt_PT
dc.subjectImpactpt_PT
dc.subjectFinite element analysispt_PT
dc.subjectStress distributionspt_PT
dc.titleGeometry and adhesive optimization of single-lap adhesive joints under impactpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage703pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage677pt_PT
oaire.citation.titleThe Journal of Adhesionpt_PT
oaire.citation.volume98pt_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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