“…In recent years, the scientific interest towards sophisticated and heterogeneous materials featuring multiple internal length scales has grown significantly, mainly due to the possibility of playing with the internal microstructure of these materials to model and engineer structures that exhibit properties not found in conventional materials (refer, e.g., to [1,2] and references therein). Such materials include cellular solids, fibrous and particle composites, biological materials, robots, and also building-scale systems made of masonry structures [3,4,5,6,7,8]. The mechanical modeling of these materials and structures calls for the introduction of degrees of freedom that are not accounted for in classical continuum mechanics, typically rotation of points (or micro-rotations) and couple stresses [9,10,11].…”