Meso-scale finite element analysis of FRP-to-concrete bond behavior

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

The interfacial behaviour between FRP and concrete is the key problem for the application of FRP to strengthen concrete structures. In this paper, a finite element (FE) model is presented for the debonding in FRP-concrete interface. In this model, concrete elements are connected with FRP elements directly without additional interface elements, so the debonding is modeled with fracture of concrete elements. Very small elements (0.25 mm to 0.5 mm in size, referred as meso-scale model) are used to simulate the crack propagation in the concrete layer adjacent to FRP. The effect of element size is considered in modeling the behavior of cracked concrete. Comparisons between the predictions of this model and test results are presented to demonstrate the capability and accuracy of this FE model. The debonding mechanism is also examined using results obtained with the FE model.
Original languageChinese (Simplified)
Pages (from-to)74-82
Number of pages9
JournalGongcheng Lixue/Engineering Mechanics
Volume23
Issue number5
Publication statusPublished - 1 May 2006

Keywords

  • Bond
  • Concrete
  • Debonding
  • Finite element analysis
  • FRP
  • Strengthen

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

Cite this