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Macroscopic diffusi...
Macroscopic diffusivity in concrete determined by computationalhomogenization
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- Nilenius, Filip, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Larsson, Fredrik, 1975 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lundgren, Karin, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa fler...
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- Runesson, Kenneth, 1948 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2012-05-31
- 2013
- Engelska.
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Ingår i: International Journal for Numerical and Analytical Methods in Geomechanics. - : Wiley. - 0363-9061 .- 1096-9853. ; 37:11, s. 1535-1551
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- mesoscale
- ballast
- computational homogenization
- diffusion
- ITZ
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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