Finite element analysis of intermediate crack-induced debonding in FRP strengthened RC beams

Xin Zheng Lu, Jinguang Teng, Lie Ping Ye, Jian Jing Jiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)


A finite element (FE) model to simulate the intermediate crack (IC) debonding of RC beams flexually strengthened with externally bonded FRP plates is presented. A dual debonding criterion is proposed so that IC debonding can be predicted with the common smeared crack approach for concrete. Based on meso-scale FE results, proper bond-slip models for the interface between FRP and concrete are subsequently proposed. The FE model is implemented into the FE package MSC.MARC. Through comparisons with the experimental results of 45 beams, the proposed method is shown to provide accurate predictions of IC debonding failures.
Original languageChinese (Simplified)
Pages (from-to)85-93
Number of pages9
JournalGongcheng Lixue/Engineering Mechanics
Issue number6
Publication statusPublished - 1 Jun 2006


  • Debonding
  • Finite element analysis
  • FRP
  • Interfacial bond
  • Load capacity
  • RC beam

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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