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Computers and Concrete
  Volume 20, Number 3, September 2017 , pages 291-295
DOI: https://doi.org/10.12989/cac.2017.20.3.291
 


Numerical approach to fracture behavior of CFRP/concrete bonded interfaces
Hai X. Lin, Jian Y. Lu and Bing Xu

 
Abstract
    Tests on the fracture behavior of CFRP-concrete composite bonded interfaces have been extensively carried out. In this study, a progressive damage model is employed to simulate the fracture behaviors. The crack nucleation, propagation and more other details can be captured by these models. The numerical results indicate the fracture patterns seem to depend on the relative magnitudes of the interface cohesive strength and concrete tensile strength. The fracture pattern transits from the predominated adhesive-concrete interface debonding to the dominated concrete cohesive cracking as the interface cohesive strength changes from lower than concrete tensile strength to higher than that. The numerical results have an agreement with the experimental results.
 
Key Words
    fracture behavior; CFRP composite; concrete; damage
 
Address
Hai X. Lin, Jian Y. Lu and Bing Xu: College of Civil Engineering, Henan Polytechnic University, Jiaozuo City, Henan Province, 454000, People
 

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