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Assessment of diagonal macrocrack-induced debonding mechanisms in FRP-strengthened RC beams
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SYSNO ASEP 0560603 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Assessment of diagonal macrocrack-induced debonding mechanisms in FRP-strengthened RC beams Author(s) Huang, Y. (CN)
Zhang, Wei (UTAM-F) RID, ORCID, SAI
Liu, X. (CN)Number of authors 3 Article number 04022056 Source Title Journal of Composites for Construction. - : American Society of Civil Engineers - ISSN 1090-0268
Roč. 26, č. 5 (2022)Number of pages 16 s. Publication form Print - P Language eng - English Country US - United States Keywords bond behavior ; cohesive zone model ; debonding ; fiber-reinforced polymer plate ; fracture ; reinforced concrete ; mixed mode OECD category Civil engineering Method of publishing Limited access Institutional support UTAM-F - RVO:68378297 UT WOS 000840687300015 EID SCOPUS 85135027717 DOI 10.1061/(ASCE)CC.1943-5614.0001255 Annotation This study presents a numerical model to characterize the fracture process of a reinforced concrete (RC) beam strengthened with fiber-reinforced polymer (FRP) in detail. A numerical model based on the application of cohesive elements was developed. Mixed-mode constitutive models were proposed to characterize the mechanical behavior of the FRP–concrete interface, the concrete potential fracture surfaces, and the rebar–concrete interface. The normal separation of the interface and its coupling effect on the shear behavior were considered in the constitutive model. In addition, the friction effect was explicitly considered in the constitutive model. Three different typical cases of FRP-strengthened RC from other experimental research were selected to validate the numerical model developed in this paper. Finally, the influence of different constitutive models on the simulation accuracy was analyzed. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2023 Electronic address https://doi.org/10.1061/(ASCE)CC.1943-5614.0001255
Number of the records: 1