Analyzing the mechanical properties of an auxetic structure under compression

Abstract

Auxetic metamaterials, with their unique mechanical traits and negative Poisson's ratios, offer a promising path in material innovation. This study employs finite element analysis to delve into the mechanical dynamics of auxetic metamaterials, particularly focusing on re-entrant lattice structures. By investigating geometric array configurations, unit cell sizes, and thicknesses, it examines their impact on displacement, strain, von Mises stress, and Young's modulus. Meticulous numerical simulations reveal significant correlations between these parameters and structural integrity. These findings highlight the critical role of geometric arrangement, unit cell dimensions, and thickness in optimizing the design and performance of auxetic metamaterials across various engineering fields. By enhancing our understanding and offering valuable insights, this research advances the development and application of auxetic metamaterials.