Macroscopic diffusivity in concrete determined by computationalhomogenization
Journal article, 2013

Effective moisture and chloride ion diffusivity coefficients for concrete are determined by computational homogenization, where concrete is modeled on the mesoscale as a heterogenous three-phase composite material. By imposing moisture and chloride ion gradients on a representative volume element, effective macroscale properties are obtained through finite element analysis. A parametric study of the effects of the ballast content was carried out. The numerical results correspond well with an estimate of the Hashin-Shtrikman type available in the literature. The computational homogenization strategy proposed here also includes the interfacial transition zone, and its influence on the effective diffusivity coefficients is assessed.

mesoscale

ballast

computational homogenization

diffusion

ITZ

Author

Filip Nilenius

Chalmers, Civil and Environmental Engineering, Structural Engineering

Fredrik Larsson

Chalmers, Applied Mechanics, Material and Computational Mechanics

Karin Lundgren

Chalmers, Civil and Environmental Engineering, Structural Engineering

Kenneth Runesson

Chalmers, Applied Mechanics, Material and Computational Mechanics

International Journal for Numerical and Analytical Methods in Geomechanics

0363-9061 (ISSN)

Vol. 37 11 1535-1551

Subject Categories

Materials Engineering

DOI

10.1002/nag.2097

More information

Created

10/8/2017