A multi-parameter homogenization study for modeling elastic masonry

摘要

The aim of this paper is to identify the macroscopic overall effective elastic properties of masonry in relation to variations in the intrinsic specific parameters which characterize the microstructure. Using a finite-element technique, Cecchi and Di Marco (2000)performed a parametric study on the ratio between the mechanical characteristics of the mortar and of the blocks, Defining also the ultimate behavior in the case the blocks are considered as infinitely stiff. The present paper deals with on a more extensive investigation, involving a study in three perturbative parameters, i.e.: the Usual scale parameter, a parameter for the ratio between the elastic moduli of the blocks which, in comparison With the previously-mentioned work, considers the mortar as increasingly deformable, plus a further parameter relative to the Ratio between the thickness of the mortar joint and the characteristic length of the microstructure.