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Computers and Concrete
  Volume 9, Number 1, January 2012, pages 51-61
DOI: http://dx.doi.org/10.12989/cac.2012.9.1.051
 


Fracture process of rubberized concrete by fictitious crack model and AE monitoring
Chao Wang, Yamei Zhang and Zhe Zhao

 
Abstract
    According to the results of three-point bending tests of rubberized concrete and plain concrete, the parameters such as total fracture energy (GF), initial fracture energy (Gf), and tensile strength (ft) are obtained for concrete material. Using ABAQUS software and a bilinear softening fictitious crack model, the crack propagation process was simulated and compared to the experimental results. It is found that the increase of AE hit count has a similar trend with the increase of energy dissipation in FEM simulation. For two types of concretes, both experimental results and numerical simulation indicate that the rubberized concrete has a better fracture resistance.
 
Key Words
    concrete; fracture; acoustic emission; fictitious model.
 
Address
Chao Wang: School of mechanics and materials, Hohai University, Nanjing, China 210098; Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing, China, 211189

Yamei Zhang and Zhe Zhao: Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing, China, 211189
 

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