Acta Mechanica Solida Sinica

, Volume 22, Issue 5, pp 418–425 | Cite as

Peeling-Off Phenomenon in FRP Strengthened Concrete Beams due to Thermal Residual Stress

  • Qianjun Xu
  • Shichang Duan


Peeling-off phenomena in FRP strengthened concrete beams are investigated in this paper. Based on the beam theory and the fracture mechanics, a new theoretical model is proposed to analyze the peeling-off behavior near FRP-concrete interfaces, which is governed by residual thermal stresses. Numerical examples are presented to provide a clear insight into the failure mechanism. Some suggestions are provided for the optimal design of FRP strengthened structures.

Key words

FRP strengthened concrete beams thermal mismatch peeling-off strain energy release rate 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2009

Authors and Affiliations

  1. 1.State Key Laboratory of Hydroscience and EngineeringTsinghua UniversityBeijingChina
  2. 2.Hydraulic and Civil Engineering CollegeXinjiang Agriculture UniversityUrumqiChina
  3. 3.Beijing Institute of Architectural DesignBeijingChina

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