The bond-behaviour of CFRP-to-concrete bonded joints under fatigue loading: A damage accumulation model

Hao Zhou, S.s. Zhang, Dilum Fernando, Tianli Huang

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This paper presents a theoretical study aimed at predicting the behaviour of carbon fibre reinforced polymer-to-concrete bonded joints under fatigue-cyclic loading. A model considering the plastic deformations of the interface, the damage, and the damage accumulation due to fatigue-cyclic loading is proposed. The damage accumulation model is calibrated through the experimental bond-slip relation. Then, a numerical algorithm is formulated to simulate the fatigue bond behaviour using the calibrated damage accumulation model. Numerical simulation was found to provide conservative predictions for fatigue life, which was attributed to the neglect of beneficial effects from the compression stress state near the loaded end in the single-shear pull-off test.
Original languageEnglish
Article number109272
Pages (from-to)109272
JournalEngineering Fracture Mechanics
Volume284
Early online date15 Apr 2023
DOIs
Publication statusPublished - 19 May 2023

Keywords / Materials (for Non-textual outputs)

  • Bond behaviour
  • CFRP strengthening
  • Damage accumulation model
  • Fatigue loading

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