RT Journal Article ID 49587dd2241efbf6 A1 Lombardo, M. A1 Zeman, Jan A1 Sejnoha, Michal A1 Falsone, G. T1 Stochastic Modeling of Chaotic Masonry via Mesostructural Characterization JF International Journal for Multiscale Computational Engineering JO JMC YR 2009 FD 2009-05-20 VO 7 IS 2 SP 171 OP 185 K1 irregular masonry structures K1 stochastic homogenization; two-point statistics K1 improved perturbation methods K1 Karhunen-Loeve expansion K1 Hashin-Shtrikman variational principles AB The purpose of this study is to explore three numerical approaches to the elastic homogenization of disordered masonry structures with moderate meso/macro-lengthscale ratio. The methods investigated include a representative of perturbation methods, the Karhunen-Loeve expansion technique coupled with Monte-Carlo simulations and a solver based on the Hashin-Shtrikman variational principles. In all cases, parameters of the underlying random field of material properties are directly derived from image analysis of a real-world structure. Added value as well as limitations of individual schemes are illustrated by a case study of an irregular masonry panel. PB Begell House LK https://www.dl.begellhouse.com/journals/61fd1b191cf7e96f,7294b47d7be58619,49587dd2241efbf6.html