Large recoverable elastic energy in chiral metamaterials via twist buckling.

ABSTRACT: Mechanical metamaterials with high recoverable elastic energy density, which we refer to as high-enthalpy elastic metamaterials, can offer many enhanced properties, including efficient mechanical energy storage^1,2, load-bearing capability, impact resistance and motion agility. These qualities make them ideal for lightweight, miniaturized and multi-functional structures^3-8. However, achieving high enthalpy is challenging, as it requires combining conflicting properties: high stiffness, high strength and large recoverable strain^9-11. Here, to address this challenge, we construct high-enthalpy elastic metamaterials from freely rotatable chiral metacells. Compared with existing non-chiral lattices, the non-optimized chiral metamaterials simultaneously maintain

SUBMITTER: Fang X 

PROVIDER: S-EPMC11922753 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature