Advanced Composite Materials

The Korean Society for Composite Materials (한국복합재료학회)
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Bonding and debonding behavior of FRP sheets under fatigue loading

  • Iwashita, Kentaro (Department of Urban and Civil Engineering, Ibaraki University) ;
  • Wu, Zhishen (Department of Urban and Civil Engineering, Ibaraki University) ;
  • Ishikawa, Takashi (Advanced Composite Evaluation Technology Center (ACE TeC), Institute of Space Technology and Aeronautics, Japan Aerospace Exploration Agency (JAXA)) ;
  • Hamaguchi, Yasumasa (Advanced Composite Evaluation Technology Center (ACE TeC), Institute of Space Technology and Aeronautics, Japan Aerospace Exploration Agency (JAXA)) ;
  • Suzuki, Toshio (Department of Urban and Civil Engineering, Ibaraki University)
  • Published : 2007.03.01
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Abstract

The purpose of this study is to improve the examining and understanding of the bonding behavior of Fiber Reinforced Polymer (FRP) sheets bonded to concrete blocks and steel plates under fatigue loading. First, a series of experimental investigations is summarized in the paper. The fatigue behavior of bonding surface between FRP sheets and concrete is finally characterized by the conducted P-S-N diagram representing the relationship among the probability of FRP debonding (P), the bond stress amplitudes (S), and the number of cycles (N) at debonding on a semi-logarithmic scale. The different debonding modes for various fracturing surface are also investigated and evaluated.

Keywords

References

  1. Standard Evaluation Method of Fatigue Reliability for Metallic Materials - Standard Regression Method of S-N Curves - JSMS-SD-6-02, JSMS Committees on Fatigue and Reliability Engineering (2002)
  2. Recommendations for Upgrading of Concrete Structures with Use of Continuous Fiber Sheets, Concrete Engineering Series 41, JSCE (2001)
  3. H. Yoshizawa, Z. S. Wu, H. Yuan and T. Kanakubo, Study on FRP-concrete interface bond performance, J. Mater. Concrete Struct. Pavement, JSCE 662, 105-119 (2000)
  4. Z. S. Wu, K. Iwashita, T. Ishikawa and Y. Hamaguchi, Bonding and debonding behavior of FRP sheets under fatigue loading, in: Proc. 10th US-Japan Confer. Compos. Mater., Standford, CA, pp. 810-818 (2002)