On the use of a mesoscale masonry pattern representation in discrete macro-element approach

This paper presents numerical investigations using the mesoscale approach coupled with discrete macro-element for masonry structures , i.e., each represents a single unit stone. At first, parametric analyses are performed on U-shape prototype made Nonlinear static to investigate parameters that affect results when pattern representation is adopted. Results demonstrate how powerful alternative model unreinforced within (particularly if compared classic homogeneous FE methodologies). However, one of main challenges in structural assessment buildings stones having different dimensions, by description. The complexity problem, and amount information needed, usually preclude study these deterministically. To this end, digital tool generate randomised patterns few input proposed. A box structure adopted as parent geometry, ten degrees randomness investigated performing nonlinear dynamic simulations. outcomes focus influence irregularity units can response leading reduction terms strength ductility regular distribution . • Pioneering application DMEM simulating structures. Numerical investigation phenomenon affects Random mesh generator implementation non-periodic patterns.