Auxetic behavior and other negative thermomechanical properties from rotating rigid units

JN Grima-Cornish, D Attard, JN Grima… - physica status solidi …, 2022 - Wiley Online Library
Auxetics display the anomalous property of expanding laterally when uniaxially stretched,
that is, a negative Poisson's ratio, a property that arises from 1) the presence of specific …

In-plane mechanical behavior of novel auxetic hybrid metamaterials

W Zhang, S Zhao, F Scarpa, J Wang, R Sun - Thin-Walled Structures, 2021 - Elsevier
We present in this paper two novel concepts of hybrid metamaterials that combine a core
unit cell of re-entrant or cross-chiral shape and lateral missing ribs. The first topology is a …

[图书][B] A partially auxetic metamaterial inspired by the maltese cross

TC Lim - 2022 - cambridge.org
A partially-auxetic metamaterial is introduced, inspired by the Maltese cross. Each unit of this
metamaterial consists of a pair of counter-rotating equal-armed crosses, which is …

Stiff auxetics: Hierarchy as a route to stiff, strong lattice based auxetic meta-materials

D Rayneau-Kirkhope - Scientific reports, 2018 - nature.com
Using a combination of analytic and computational methods, we examine the effect of
adding hierarchical substructure to an auxetic lattice. Our novel methodology, involving a …

Random auxetics from buckling fibre networks

S Domaschke, A Morel, G Fortunato, AE Ehret - Nature communications, 2019 - nature.com
Auxetic materials have gained increasing interest in the last decades, fostered by auspicious
applications in various fields. While the design of new auxetics has largely focused on meta …

A novel mechanical metamaterial exhibiting auxetic behavior and negative compressibility

JN Grima-Cornish, JN Grima, D Attard - Materials, 2019 - mdpi.com
Auxetics (negative Poisson's ratio) and materials with negative linear compressibility (NLC)
exhibit the anomalous mechanical properties of getting wider rather than thinner when …

Manufacture and evaluation of auxetic yarns and woven fabrics

Y Gao, S Liu, M Wu, X Chen, R Studd - physica status solidi (b), 2020 - Wiley Online Library
Auxetic materials are a type of novel materials exhibiting negative Poisson's ratio (NPR) with
potentials for special applications. Herein, the aim is to optimize the auxetic yarn and fabric …

Smart Honeycomb “Mechanical Metamaterials” with Tunable Poisson's Ratios

JN Grima-Cornish, R Cauchi, D Attard… - … status solidi (b), 2020 - Wiley Online Library
Mechanical metamaterials represent a class of deformable systems, which exhibit
macroscopic deformations, mechanical, and/or thermal properties. These emerge due to the …

Boron Arsenate Scaled‐Up: An Enhanced Nano‐Mimicking Mechanical Metamaterial

JN Grima-Cornish, D Attard, L Vella-Żarb… - … status solidi (b), 2022 - Wiley Online Library
Novel mechanical metamaterials inspired by single crystal boron arsenate built at the
macroscale using conventional materials are presented and investigated through finite …

[HTML][HTML] Boron arsenate and its pressure-dependent auxetic properties

JN Grima-Cornish, L Vella-Żarb, JN Grima, KE Evans - APL Materials, 2022 - pubs.aip.org
The mechanical properties of single crystals boron arsenate, BAsO 4, are simulated through
density functional theory simulations over a wide range of pressures from− 10 to+ 90 GPa. It …