负泊松比超材料研究进展

Since the concept of metamaterials is firstly proposed in the early 21st century, it has gradually developed into an important branch of new material technology. In recent years, dozens of metamaterials with diverse functions have emerged in endlessly in various fields. A comprehensive overview of metamaterials involved in acoustics, optics, thermology, mechanics and electromagnetics is stated. Focusing on metamaterials with negative Poisson’s ratio, a research progress about the design of negative Poisson’s ratio unit cells (including re-entrant structure, rotating polygons, chiral structure, etc.) is systematically reviewed in the perspective of their deformation mechanism. The thermal and acoustic metamaterials based on negative Poisson’s ratio unit cells are detailed investigated from functional principles to basic properties. Prospects to the upcoming challenges and development trends of negative Poisson’s ratio metamaterials are made.