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dc.contributor.authorLi, Xiaole
dc.contributor.authorTao, Ran
dc.contributor.authorYudhanto, Arief
dc.contributor.authorLubineau, Gilles
dc.date.accessioned2020-04-23T06:21:49Z
dc.date.available2020-04-23T06:21:49Z
dc.date.issued2020-04-22
dc.date.submitted2020-03-08
dc.identifier.citationLi, X., Tao, R., Yudhanto, A., & Lubineau, G. (2020). How the spatial correlation in adhesion properties influences the performance of secondary bonding of laminated composites. International Journal of Solids and Structures. doi:10.1016/j.ijsolstr.2020.04.012
dc.identifier.issn0020-7683
dc.identifier.doi10.1016/j.ijsolstr.2020.04.012
dc.identifier.urihttp://hdl.handle.net/10754/662612
dc.description.abstractSpatial heterogeneity of adhesion properties is known to result in bridging during debonding of secondary bonded composite joints. The ligaments that bridge both substrates have crack-arrest features and thus significantly enhance the fracture resistance of joints. We have investigated the effect of randomly distributed adhesion properties between the adhesive layer and each composite substrate in previous works; however, the spatial correlation of adhesion heterogeneity within or between the substrates and how it effects the failure of secondary bonded composites is still poorly understood. In this current work, we assume that the spatial heterogeneity of adhesion follows a log-normal distribution. The Napierian logarithm of interface toughness Gc and separating strength S can thus be described by a Gaussian Process. We investigate in detail the effect of spatial correlation both within each substrate and between opposite substrates. Finally, we predict the crack resistance of such joints with adhesives of different mechanical properties. We find that the failure strain of adhesives is important through varying the elongation of ligaments and thus the associated extra dissipated energy. This work represents the first critical step for designing tougher secondary bonded composite joints by triggering and controlling adhesive ligament bridging.
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award number OSR-2017-CRG6-3388.01.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0020768320301281
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Solids and Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Solids and Structures, [, , (2020-04-22)] DOI: 10.1016/j.ijsolstr.2020.04.012 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleHow the spatial correlation in adhesion properties influences the performance of secondary bonding of laminated composites
dc.typeArticle
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalInternational Journal of Solids and Structures
dc.rights.embargodate2022-04-22
dc.eprint.versionPost-print
kaust.personLi, Xiaole
kaust.personTao, Ran
kaust.personYudhanto, Arief
kaust.personLubineau, Gilles
kaust.grant.numberOSR-2017-CRG6-3388.01
dc.date.accepted2020-04-09
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)
dc.date.published-online2020-04-22
dc.date.published-print2020-07


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