Computers and Concrete

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Fracture process of rubberized concrete by fictitious crack model and AE monitoring

  • Wang, Chao (School of mechanics and materials, Hohai University) ;
  • Zhang, Yamei (Jiangsu Key Laboratory of Construction Materials, Southeast University) ;
  • Zhao, Zhe (Jiangsu Key Laboratory of Construction Materials, Southeast University)
  • Received : 2010.08.04
  • Accepted : 2011.03.23
  • Published : 2012.01.25
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Abstract

According to the results of three-point bending tests of rubberized concrete and plain concrete, the parameters such as total fracture energy ($G_F$), initial fracture energy ($G_f$), and tensile strength ($f_t$) 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.

Keywords

References

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