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Computers and Concrete Volume 9, Number 1, January 2012 , pages 51-61 DOI: https://doi.org/10.12989/cac.2012.9.1.051 |
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Fracture process of rubberized concrete by fictitious crack model and AE monitoring |
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Chao Wang, Yamei Zhang and Zhe Zhao
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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 (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 | ||