Meta-sheet capable of independent design of poisson's ratio and coefficient of thermal expansion, and method of designing the same

Abstract

Disclosed are a meta-sheet capable of independent design of a Poisson's ratio and a coefficient of thermal expansion, and a method of designing the same, the meta-sheet including: unit structures shaped like polygons, formed of beams, and arranged continuously with polygonal edges connected by hinges so that the meta-sheet can expand or contract at a predetermined Poisson's ratio as the unit structures are rotated by external force, wherein the beam is formed as a bilayer beam into which two materials different in the coefficient of thermal expansion are jointed in a longitudinal direction, and bending deformation occurs due to heat so that the meta-sheet can expand or contract by external heat.

Dependencies are inferred from the claim text.