Computers and Concrete

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Three-dimensional numerical simulation and cracking analysis of fiber-reinforced cement-based composites

  • Huang, Jun (School of Civil Engineering and Transportation, South China University of Technology) ;
  • Huang, Peiyan (School of Civil Engineering and Transportation, South China University of Technology)
  • Received : 2009.10.15
  • Accepted : 2010.08.27
  • Published : 2011.06.25
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Abstract

Three-dimensional graphic objects created by MATLAB are exported to the AUTOCAD program through the MATLAB handle functions. The imported SAT format files are used to produce the finite element mesh for MSC.PATRAN. Based on the Monte-Carlo random sample principle, the material heterogeneity of cement composites with randomly distributed fibers is described by the WEIBULL distribution function. In this paper, a concept called "soft region" including micro-defects, micro-voids, etc. is put forward for the simulation of crack propagation in fiber-reinforced cement composites. The performance of the numerical model is demonstrated by several examples involving crack initiation and growth in the composites under three-dimensional stress conditions: tensile loading; compressive loading and crack growth along a bimaterial interface.

Keywords

Acknowledgement

Supported by : China Postdoctoral Science Foundation

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