In this paper, we give a review of the state of the art in the study of mechanical
metamaterials. The very attractive property of having a microstructure capable of …

A review on models for pantographic fabrics, a new promising kind of metamaterials, is
presented. We treat those models that are able to capture the peculiar effects conferred by …

Multilayer pantographic metamaterials, in short, pantographic blocks, have shown peculiar
mechanical behavior, especially when their constitutive hinges are revolving (ie, perfect) …

By using modern additive manufacturing techniques, a structure at the millimeter length
scale (macroscale) can be produced showing a lattice substructure of micrometer …

In this paper, we formulate a linear elastic second gradient isotropic two-dimensional
continuum model accounting for irreversible damage. The failure is defined as the condition …

The well-posedness of the boundary value problems for second gradient elasticity has been
studied under the assumption of strong ellipticity of the dependence on the second …

In this paper we present a model in which the motions of two families of beams constituting a
pantographic sheet, when described with two independent placement fields, allows to …

In order to design the microstructure of metamaterials showing high toughness in extension
(property to be shared with muscles), it has been recently proposed (Dell'Isola et al. in Z …

Double-arrowed auxetic (DAA) structures with a negative Poisson's ratio have recently
drawn increasing attention. This paper deduces the empirical formula of critical impact …

The problem of the synthesis of second gradient (meta) materials, via architectured
microstructures made of micro-lattices, has been solved (Alibert et al., 2003; Seppecher et …