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Date:2022-08-29

Indexed by:Journal Article

Date of Publication:2022-06-29

Journal:应用基础与工程科学学报

Volume:23

Issue:5

Page Number:873-885

ISSN:1005-0930

Abstract:The statistical damage constitutive model for concrete under biaxial
   tensile and compressive stresses was proposed, based on the statistical
   damage theory and the experimental phenomena. It considered two
   meso-scale damage modes, rupture and yield. The evolution process of
   damage was driven by the principal tensile and compressive strains. The
   damage evolution process of concrete under complex stress state was
   considered as the combination of uniaxial tension and uniaxial
   compression, which were regarded as the two most fundamental failure
   forms. The equivalent relations of micromechanical damage mechanisms
   corresponding to the macroscopic tensile and compressive failure modes
   were established, by introducing the concepts of equivalent transfer
   tensile damage strain and the damage influence parameter. The results
   show that it can accurately predict the constitutive behavior in the
   uniform damage phase for concrete under biaxial tension and compression.
   The damage mechanism was discussed from the view points of biaxial
   strength, deformation properties and the failure form.

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