The rapid progress of advanced manufacturing, multidisciplinary integration and artificial
intelligence has ushered in a new era of technological development in the design of …

Active mechanical metamaterials (AMMs)(or smart mechanical metamaterials) that combine
the configurations of mechanical metamaterials and the active control of stimuli‐responsive …

Auxetic mechanical metamaterials, which expand transversally when axially stretched, are
widely used in flexible electronics and aerospace. However, these chiral metamaterials …

Shape memory materials can maintain temporary shapes without external constraints and
revert to their permanent shape upon exposure to an external stimulus, such as heat, light …

The aim of this paper is to introduce dual-material auxetic meta-sandwiches by four-
dimensional (4D) printing technology for reversible energy absorption applications. The …

Two-dimensional lattice structures with specific geometric features have been reported to
have a negative Poisson's ratio, termed as auxetic metamaterials, that is, stretching-induced …

Many biological tissues offer J-shaped stress–strain responses, since their microstructures
exhibit a three-dimensional (3D) network construction of curvy filamentary structures that …

Auxetic structures are a special class of structural components that exhibit a negative
Poisson's ratio (NPR) because of their constituent materials, internal microstructure, or …

Real-time tunable mechanical metamaterial is an emerging field attracting great attention. It
enables a wide range of mechanical properties but is hard to design and fabricate due to its …

Multistable mechanical metamaterials are artificial materials whose microarchitectures offer
more than two different stable configurations. Existing multistable mechanical metamaterials …