Mechanical metamaterials are man-made structures with counterintuitive mechanical
properties that originate in the geometry of their unit cell instead of the properties of each …

The surge of interest in so-called “designer materials” during the last few years together with
recent advances in additive manufacturing (3D printing) techniques that enable fabrication …

Mechanical metamaterials have been designed to achieve custom Poisson's ratios via the
deformation of their microarchitecture. These designs, however, have yet to achieve the …

Kirigami tessellations, regular planar patterns formed by partially cutting flat, thin sheets,
allow compact shapes to morph into open structures with rich geometries and unusual …

Auxetic materials exhibiting a negative Poisson's ratio are shown to have better indentation
resistance, impact shielding capability, and enhanced toughness. Here, we report a class of …

The emerging concept of mechanical meta-materials has received increasing attention
during the last few years partially due to the advances in additive manufacturing techniques …

Auxetic materials become thicker rather than thinner when stretched, exhibiting an unusual
negative Poisson's ratio well suited for designing shape transforming metamaterials. Current …

Poisson's ratio had long been considered to be an intrinsic material property, confined within
a narrow domain and governed solely by the geometry of interatomic bonds. Materials with …

Auxetic mechanical metamaterials (AMMs), as an exciting paradigm of metamaterials, have
attracted increasing attention due to their interesting mechanical properties (eg negative …

Magnetic soft materials (MSMs) have shown potential in soft robotics, actuators,
metamaterials, and biomedical devices because they are capable of untethered, fast, and …