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Numerical Simulation and Performance Analysis of Concrete Based on Material Mesostructures(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年04期
Page:
19-22
Research Field:
Publishing date:
2008-12-20

Info

Title:
Numerical Simulation and Performance Analysis of Concrete Based on Material Mesostructures
Author(s):
JIN Wei-liang;  XU Bo;  WANG Hai-long
Institute of Structural Engineering, Zhejiang University,Hangzhou 310027, Zhejiang, China
Keywords:
concrete;  mesostructure;  numerical simulation;  interface;  performance analysis;  steady chloride diffusion coefficient
PACS:
TU528.041
DOI:
-
Abstract:
Based on the random aggregate model, a finite element method was employed to calculate the steady chloride diffusion coefficient. In the mesolevel, concrete was considered as a three-phase composite material, consisting of aggregate, cement matrix and interfacial transition zone(ITZ). The circle aggregate distribution of meso concrete in two dimensions was simulated on basis of stereological theory and Monte Carlo method. The ITZ was simulated as a ring outside the aggregate after its thickness being calculated. By these methods, the three-phase numerical model of concrete was established. Comparisons between numerical and experimental results were carried out. The results show that the model is effective to calulate the steady chloride diffusion coefficient of concrete.

References:

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Memo

Memo:
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Last Update: 2008-12-20