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Numerical Homogenization in Concrete Materials Using Multi-Resolution Analysis
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 Title & Authors
Numerical Homogenization in Concrete Materials Using Multi-Resolution Analysis
Rhee In-Kyu; Roh Young-Sook;
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The stiffness properties of heterogeneous concrete materials and their degradation were investigated at different-levels of observations with aids of the opportunities and limitations of multi-resolution wavelet analysis. The successive Haw transformations lead to a recursive separation of the stiffness properties and the response into coarse-and fine-scale features. In the limit, this recursive process results in a homogenization parameter which is an average measure of stiffness and strain energy capacity at the coarse scale. The basic concept of multi-resolution analysis is illustrated with one and two-dimensional model problems of a two-phase particulate composite representative of the morphology of concrete materials. The computational studies include the meso-structural features of concrete in the form of a hi-material system of aggregate particles which are immersed in a hardened cement paste taking due to account of the mismatch of the two elastic constituents.
multi-resolution homogenization;Haar wavelets;damage mechanics of coarse and fine scale features;
 Cited by
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