Micromechanics equivalent performance study of steel fiber reinforced concrete with interface layers
[1]Cheng zhanqi,Xia naikai.Micromechanics equivalent performance study of steel fiber reinforced concrete with interface layers[J].Journal of Zhengzhou University (Engineering Science),2014,35(01):104-107.[doi:10.3969/j.issn.1671-6833.2014.01.024]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
35
Number of periods:
2014 01
Page number:
104-107
Column:
Public date:
2014-02-28
- Title:
- Micromechanics equivalent performance study of steel fiber reinforced concrete with interface layers
- CLC:
- -
- DOI:
- 10.3969/j.issn.1671-6833.2014.01.024
- Abstract:
- The interface between steel fiber and concrete matrix has a great influence on the strengthening and toughening effect of steel fiber concrete (SFRC), so in order to investigate its microstructure characteristics, the relationship between SFRC microstructure and its macroscopic properties is discussed. Considering the circular steel fibers distributed in the infinite isotropic plane, the super-singular integral equation and complex function are used to establish the analysis model of stress, strain and displacement on the fiber, interface and matrix. The Galerkin integral method and Gauss-Seidel iterative method were used to obtain the equivalent parameters of steel fiber concrete with different volume rates and interfacial layer thickness under plane strain gauges, and the influence of steel fiber volume rate and interface layer thickness on the equivalent parameters of materials was discussed, and compared with the results obtained by macroscopic experiments under the same conditions, the results show that the model can accurately analyze the macroelastic parameters of steel fiber concrete.
- References:
- -
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