Auxetic foams counter-intuitively expand (shrink) under stretching (compression). These
foams can exhibit superior mechanical properties such as resistance to shear and …

Over the last three decades but more particularly during the last 5 years, auxetic mechanical
metamaterials constructed from precisely architected polymer-based materials have …

We tested whether conventional and auxetic (negative Poisson's ratio) foam indentation
response fits with classical indentation theory. We first made foam cubes with 20–25 mm …

This work analyses shear moduli of conventional and auxetic open-cell polymer foams.
Shear moduli are i) measured directly and ii) calculated by applying elasticity theory for …

Auxetic materials behave unconventionally under deformation, which enhances material
properties such as resistance to indentation and energy absorption. Auxetics, therefore …

We present here a simplified procedure to manufacture auxetic PU foam via a single
direction thermoforming compression process applied to conventional (pristine) open cell …

The combination of an auxetic structure featuring a negative Poisson's ratio (NPR) and
viscoelastic materials with superior damping behavior and energy absorption introduces a …

To obtain materials or metamaterials with desired elastic properties that are tailor-made for a
particular application, it is necessary to design a new material or composite (which may be …

Auxetic closed cell foams, and highly viscoelastic foams, both show potential to improve
impact protection. Specifically, auxetics adapt to the shape of impacting bodies, while highly …

Open cell foams with auxeticity and modulus 5 times larger than the stiffest auxetic polymeric
open cell foam featured in scientific literature are developed in this paper by using vacuum …