Design and properties of 3D-printed chiral auxetic metamaterials by reconfigurable connections
Journal
Physica Status Solidi (B) Basic Research
Journal Volume
253
Journal Issue
8
Pages
1557-1564
Date Issued
2016
Author(s)
Abstract
This article describes the rules and procedures for designing a three-dimensional (3D) antitetrachiral structure that achieves a negative Poisson's ratio. Numerical analysis and experimental validation showed good agreement between the deformations and Poisson's ratios. Moreover, the proposed auxetic structure displayed anisotropic behavior in x- and y-directional compression as well as isotropic behavior in z-directional compression. The parametric study and design examples presented in this article demonstrate the relationships among the Poisson's ratio, effective Young's modulus, porosity, and geometry of the proposed structure, and provide insights into the potential applications for future auxetic designs.
Type
journal article