LI Shu-guang, LI Qing-bin. TWO DIMENSIONAL ANALYSIS OF DRYING SHRINKAGE MICRO-CRACKING IN CONCRETE WITH MODIFIED SMEARED CRACKING MODEL[J]. Engineering Mechanics, 2011, 28(12): 65-71.
Citation: LI Shu-guang, LI Qing-bin. TWO DIMENSIONAL ANALYSIS OF DRYING SHRINKAGE MICRO-CRACKING IN CONCRETE WITH MODIFIED SMEARED CRACKING MODEL[J]. Engineering Mechanics, 2011, 28(12): 65-71.

TWO DIMENSIONAL ANALYSIS OF DRYING SHRINKAGE MICRO-CRACKING IN CONCRETE WITH MODIFIED SMEARED CRACKING MODEL

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  • Received Date: April 06, 2010
  • Revised Date: May 31, 2010
  • The traditional fracture energy cracking criterion in a smeared cracking model, with the limitation of poor convergence and misjudgement of micro-cracks, is not applicable in the meso-level simulation of drying shrinkage micro-cracking in concrete. A modified smeared cracking model with an equivalent fracture energy cracking criterion is proposed and employed in the simulation of drying shrinkage micro-cracking in concrete specimens using an explicit method available in the commercial software ABAQUS. The micro-crack patterns from simulations of single-aggregate and random-aggregate-structure specimens agree well with the experimental results, showing the applicability of the modified smeared cracking model in modeling the meso-level drying shrinkage micro-cracking in concrete.
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