A computational multiscale approach to couple hygro-mechanical responses of large-scale masonry walls

We present a computational multiscale approach to the nonlinear problems of humidity diffusion and mechanical damage of large-scale masonry walls, and their coupling in terms of the effects of the humidity diffusion on the mechanical response and the effects of the mechanical degradation on the diffusion process. Such an approach allows us to recover, both efficiently and accurately, the complex nonlinear response of large-scale walls, which are in general hard to be solved by means of standard numerical tools. Two representative tests of two- and three-storey walls are here analyzed, and the corresponding results reported and commented, aiming to show how samples like these can potentially serve as reference solutions for more applicative purposes.