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An innovative wide-ranging analytical approach for modelling the bond behaviour of frp-to-substrate joints with an elastic end anchorage

2025-01-23Artigo científico Acesso aberto
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dc.contributor.authorBiscaia, Hugo C.
dc.contributor.authorDai, Jian Guo
dc.contributor.institutionDEMI - Departamento de Engenharia Mecânica e Industrial
dc.contributor.institutionUNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial
dc.contributor.institutionFaculdade de Ciências e Tecnologia (FCT)
dc.contributor.pblElsevier Science B.V., Amsterdam.
dc.date.accessioned2025-06-04T21:14:59Z
dc.date.available2025-06-04T21:14:59Z
dc.date.issued2025-01-23
dc.descriptionCity University of Hong Kong Startup Funding \u201CAdvanced Functional Construction Materials ( AFCM ) for Sustainable Built Environment\u201D (Project code: 9380165). Publisher Copyright: © 2024 The Author(s)
dc.description.abstractFibre-reinforced polymers (FRP) are often externally bonded (EB) to concrete, steel or timber structures for structural strengthening purposes. In the EB reinforcement system, the bond between materials is critical for the success of such a bonding system. However, the system is prone to debond at an FRP strain level much lower than its rupture value. For this reason, it is often necessary to use end anchorages in FRP-strengthened beams to delay or avoid this premature debonding of FRP from the beams. To better understand the debonding process of mechanically anchored FRP-to-substrate joints, the present work proposes a new analytical approach that considers an elastic end anchorage, which can simulate, through a spring, the slips developed in an end anchorage such as an FRP U-wrap jacket, FRP spike anchor, steel plate anchorage, among others. This new approach can also simulate the bond performance of FRP-to-substrate joints with no end anchorages by assuming that the stiffness of the end anchorage is zero. Expressions for defining the load-slip curves, FRP strains, interfacial slips, and bond stresses developed throughout the bonded length are derived and validated against the results from the Finite Element Analysis (FEA). In the end, the model was used to simulate several experimental tests on mechanically anchored FRP-to-substrate joints available in the literature. Despite its simplicity, the proposed analytical approach covers wider situations that no other known similar approach can deal with.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent2542785
dc.identifier.doi10.1016/j.engfracmech.2024.110662
dc.identifier.issn0013-7944
dc.identifier.otherPURE: 105135665
dc.identifier.otherPURE UUID: 043fa5e3-c89d-4d6a-be03-6bc0ebbcbca5
dc.identifier.otherScopus: 85209707099
dc.identifier.otherWOS: 001364392900001
dc.identifier.otherORCID: /0000-0002-4791-5123/work/185395288
dc.identifier.urihttp://hdl.handle.net/10362/183849
dc.identifier.urlhttps://www.scopus.com/pages/publications/85209707099
dc.language.isoeng
dc.peerreviewedyes
dc.relationFunding Information: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00667%2F2020/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F00667%2F2020/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FEME-APL%2F0994%2F2021/PT
dc.subjectAnalytical approach
dc.subjectAnchorages
dc.subjectDebonding
dc.subjectFRP composites
dc.subjectSingle-lap shear test
dc.subjectGeneral Materials Science
dc.subjectMechanics of Materials
dc.subjectMechanical Engineering
dc.titleAn innovative wide-ranging analytical approach for modelling the bond behaviour of frp-to-substrate joints with an elastic end anchorageen
dc.typejournal article
degois.publication.titleEngineering Fracture Mechanics
degois.publication.volume313
dspace.entity.typePublication
oaire.awardNumberUIDB/00667/2020
oaire.awardNumberEXPL/EME-APL/0994/2021
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F00667%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FEME-APL%2F0994%2F2021/PT
oaire.fundingStreamConcurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017/2018) - Financiamento Base
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublication1c31e89c-4266-4222-a843-3fc6069cef4e
relation.isProjectOfPublication8c587918-e3b2-43e2-b1be-1188d5dcba08
relation.isProjectOfPublication.latestForDiscovery8c587918-e3b2-43e2-b1be-1188d5dcba08

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