3D Hyperbolic Kirigami Metamaterials With Tunable Auxeticity and Multistability.

ABSTRACT: Kirigami mechanical metamaterials provide exceptional tunability in mechanical properties and morphing capabilities, exhibiting great potential for deployable and actuatable devices. However, most kirigami structures can only deform freely within a 2D plane, with limited out-of-plane deformability, making them inadequate for constructing periodic objects with arbitrary 3D shapes. Here, a novel class of 3D mechanical metamaterials with hyperbolic kirigami tessellations has been developed. By projecting hyperbolic kirigami templates onto three types of triply periodic minimal surfaces, candidate structures are developed with remarkable properties. An extreme negative Poisson's ratio of -1 and tunable mechanical multistability are uncovered through theoretical analysis, numerical simulations,

SUBMITTER: Lei Y 

PROVIDER: S-EPMC12463087 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature