Bonding Behaviors of GFRP/Steel Bonded Joints after Wet–Dry Cyclic and Hygrothermal Curing

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dc.contributor.authorLiu, Jieen
dc.contributor.authorGuo, Tongen
dc.contributor.authorHebdon, Matthew H.en
dc.contributor.authorLiu, Zhongxiangen
dc.contributor.authorWang, Libinen
dc.contributor.departmentCivil and Environmental Engineeringen
dc.date.accessioned2020-08-21T15:04:25Zen
dc.date.available2020-08-21T15:04:25Zen
dc.date.issued2020-08-05en
dc.date.updated2020-08-21T13:49:52Zen
dc.description.abstractThis paper presents the outcomes of a research program that tested and examined the behaviors of glass fiber-reinforced polymer (GFRP) bonded steel double-strap joints after being cured in a variety of harsh curing conditions. Nineteen specimens were manufactured, cured in an air environment (the reference specimen), treated with different wet&ndash;dry cyclic curing or hygrothermal pretreatment, and then tested under quasi-static loading. Based on the experimental studies, mixed failure modes, rather than the cohesive failure of the adhesive, were found in the harsh environmental cured specimens. Additionally, an approximately linear relationship of load&ndash;displacement curves was observed for all the GFRP/steel bonded specimens from which the tensile capacities and stiffness were discussed. By analyzing the strain development of the bonded specimens during quasi-static tensile testing, the fracture mechanism analysis focused on the threshold value of the strain curves for different cured specimens. Finally, based on the studies of interfacial fracture energy, <i>G<sub>f</sub></i>, the effects of harsh environmental curing were assessed. The results showed that the failure modes, joint tensile capacities, stiffness, and interfacial fracture energy <i>G<sub>f</sub></i> were highly dependent on the curing conditions, and a significant degradation of bonding performance could be introduced by the investigated harsh environments.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLiu, J.; Guo, T.; Hebdon, M.H.; Liu, Z.; Wang, L. Bonding Behaviors of GFRP/Steel Bonded Joints after Wet–Dry Cyclic and Hygrothermal Curing. Appl. Sci. 2020, 10, 5411.en
dc.identifier.doihttps://doi.org/10.3390/app10165411en
dc.identifier.urihttp://hdl.handle.net/10919/99819en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectGFRP/steelen
dc.subjectwet–dry cyclic curingen
dc.subjecthygrothermal pretreatmenten
dc.subjectadhesiveen
dc.subjectinterfacial fracture energyen
dc.titleBonding Behaviors of GFRP/Steel Bonded Joints after Wet–Dry Cyclic and Hygrothermal Curingen
dc.title.serialApplied Sciencesen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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