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Comparative evaluation of adhesively-bonded single-lap and stepped-lap joints

2019Journal article Open access
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dc.contributor.authorSilva, J.O.S.
dc.contributor.authorCampilho, R.D.S.G.
dc.contributor.authorRocha, R.J.B.
dc.contributor.authorSilva, F.J.G.
dc.date.accessioned2020-04-29T09:50:25Z
dc.date.available2020-04-29T09:50:25Z
dc.date.issued2019
dc.description.abstractSeveral adhesive joint configurations are available, namely butt joints, single-lap joints (SLJ), double-lap joints and scarf joints. Stepped-lap joints, which are not so studied, consist of a finite number of steps in the bonded area, possessing stress concentrations at all step edges instead of only at the bonded length edges. Stepped-lap joints increase the maximum load (Pm) over SLJ. The present study experimentally and numerically evaluates the static tensile strength of SLJ and stepped-lap joints bonded with the moderately ductile adhesive Araldite® 2015, considering varying values of overlap length (LO). A Finite Element Method (FEM) analysis was carried out to compare through-thickness normal (σy) and shear (τxy) stresses in the bondline between joint configurations. Additionally, a Cohesive Zone Modelling (CZM) analysis was considered to study the failure modes and to evaluate the CZM technique’s accuracy. Between SLJ and stepped-lap joints, the improved stress distributions of the stepped-lap joints resulted in higher joint performance, especially for higher LO. The CZM model revealed to be accurate in predicting Pm.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.promfg.2020.01.209pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/15913
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2351978920302109pt_PT
dc.subjectAdhesive jointspt_PT
dc.subjectStepped-lap jointpt_PT
dc.subjectFinite Element Analysispt_PT
dc.subjectCohesive Zone Modelspt_PT
dc.subjectStress analysispt_PT
dc.titleComparative evaluation of adhesively-bonded single-lap and stepped-lap jointspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1196pt_PT
oaire.citation.startPage1189pt_PT
oaire.citation.titleProcedia Manufacturingpt_PT
oaire.citation.volume38pt_PT
person.familyNameCampilho
person.givenNameRaul Duarte Salgueiral Gomes
person.identifier.ciencia-id0314-43B9-03D4
person.identifier.orcid0000-0003-4167-4434
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4decb370-eb85-4ee1-987f-ec328565ea07
relation.isAuthorOfPublication.latestForDiscovery4decb370-eb85-4ee1-987f-ec328565ea07

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