Influence of the cohesive law shape on the composite adhesively-bonded patch repair behaviour

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dc.contributor.author Moreno Fernández-Cañadas, Lorena María
dc.contributor.author Iváñez del Pozo, Inés
dc.contributor.author Sánchez Sáez, Sonia
dc.date.accessioned 2016-09-27T08:44:19Z
dc.date.available 2018-04-15T22:00:05Z
dc.date.issued 2016-04-15
dc.identifier.bibliographicCitation Composites Part B, 2016, 91, pp. 414-421
dc.identifier.issn 1359-8368
dc.identifier.uri http://hdl.handle.net/10016/23642
dc.description.abstract In this study, the cohesive failure of the adhesive layer of an adhesively-bonded joint under uniaxial tensile loads in static conditions is discussed as an approximation to the behaviour of adhesively-bonded repairs. A three-dimensional finite-element model of a single-lap joint was developed using the commercial code Abaqus. Cohesive Zone Models (CZM) coupled to Finite Element Analysis, were used to study the failure strength of the joint. They allowed the prediction of the initiation of the crack and its growth. CZM are governed by a traction-separation law, which can acquire different shapes. The numerical model, considering a linear cohesive law, was validated with 2D numerical and experimental results available in the literature. The effect of different cohesive law shapes, such as exponential and trapezoidal, on the failure load of the joint was studied. In addition, a cohesive parametric analysis was performed, varying the adhesive toughness and cohesive strength. The most suitable cohesive law was the trapezoidal, since the failure load results were close to the experimental data taken from the literature. The cohesive strength is identified as the most influential parameter on the studied variable.
dc.description.sponsorship The authors are indebted for the financial support of this work to the Ministry of Economy and Competitiveness of Spain (project DPI2013 42240 R).
dc.format.extent 8
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2016 Elsevier Ltd. All rights reserved
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Laminates
dc.subject.other Adhesion
dc.subject.other Fracture toughness
dc.subject.other Finite element analysis (FEA)
dc.subject.other Cohesive zone model
dc.subject.other Zone models
dc.subject.other Aircraft structures
dc.subject.other Failure analysis
dc.subject.other Joints
dc.subject.other Single
dc.subject.other Strength
dc.subject.other Damage
dc.subject.other Simulation
dc.title Influence of the cohesive law shape on the composite adhesively-bonded patch repair behaviour
dc.type article
dc.relation.publisherversion http://dx.doi.org/10.1016/j.compositesb.2016.01.056
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Ingeniería Mecánica
dc.identifier.doi 10.1016/j.compositesb.2016.01.056
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI-2013-42240-R
dc.type.version acceptedVersion
dc.relation.eventtype proceeding
dc.identifier.publicationfirstpage 414
dc.identifier.publicationlastpage 421
dc.identifier.publicationtitle Composites. Part B, Engineering
dc.identifier.publicationvolume 91
dc.identifier.uxxi AR/0000017959
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