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Numerical approach to fracture behavior of CFRP/concrete bonded interfaces
Hai X. Lin,Jian Y. Lu,Bing Xu 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.20 No.3
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.