Nonlinear numerical simulation and experimental verification of bondline strength of CFRP strips embedded in concrete for NSM strengthening applications
نویسندگان
چکیده
This article presents results of an investigation that focuses on assessing bondline strength carbon/epoxy fiber reinforced polymeric (CFRP) precured strips embedded in concrete for near-surface-mounting (NSM) strengthening applications. In this study, experimental evaluation and nonlinear numerical analysis CFRP/concrete interfacial bond behavior are investigated. 15 pull-out tests were performed different (RC) U-shaped column specimens with NSM groove configurations to evaluate the effect size, depth, adhesive thickness overall performance CFRP-NSM system identify optimum dimensions. Experimental indicated changing geometries NSM-FRP reinforcements significantly affect associated mode failures NSM-CFRP system. It was also shown increasing length lead increase ultimate failure load CFRP rupture strain. Based materials lower longitudinal moduli higher strains (e.g., E-glass/epoxy or basalt/epoxy), may toughness enhance
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ژورنال
عنوان ژورنال: Structural Concrete
سال: 2022
ISSN: ['1464-4177', '1751-7648']
DOI: https://doi.org/10.1002/suco.202100537