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Prediction of debonding behavior of externally bonded FRP-to-concrete joints with bond defects: Analytical approach and experimental validation
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DOI：10.1016/j.compstruct.2026.120417.png)
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Abstract
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• Development of analytical model for FRP-to-concrete joints with a single bond defect. • Derivation of closed-form solutions for full-range debonding process of defective joints. • Validation against experimental data shows good agreement with IAE values below 15%. • Increasing defect ratio from 10% to 30% causes over 50% drop in minimum load and over 15% loss in peak capacity. • Defects near loaded end cause unstable load drops while those near free end exhibit stable debonding and better capacity.
Keywords:
FRP-to-concrete joints
bond defect
debonding propagation
load-slip response
analyticalapproach
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