High performance energy absorbing materials are urgently needed in the aerospace field. However

traditional energy-absorbing materials rely on plastic deformation and have the disadvantage of low reuse rate. In order to solve the above problems

this paper analyzes and studies the typical bistable metamaterial with strong reusable properties. Three types of mechanical metamaterial

namely sinusoidal beam element

articulated shell element and petal paper-cut element

are selected as the research objects

and parametric scanning method is adopted. The relationship of bistable characteristics

energy absorption characteristics and geometric parameters of metamaterial element is obtained by finite element simulation software. Three kinds of metamaterial units were prepared by additive manufacturing technology

and the simulation results were verified by mechanical compression tests. It provides a basis for the application of mechanical energy absorption in precision instruments and personnel protection.