In-plane equivalent modulus of a novel zero Poisson’s ratio honeycomb structure

Abstract

This paper proposed a new zero-Possion’s ratio (ZPR) honeycomb structure. The proposed ZPR honeycomb structure improves the traditional semi-reentrant honeycomb structure by introducing vertical cell walls and changing the topological structure between cells to achieve better in-plane deformation capability. The in-plane modulus of the structure was constructed during this research by a mathematical framework and a FEM model. The test specimen of the construction was created using the Stereolithography Apparatus (SLA) technology, and an axial compression experiment was utilized to confirm the model’s accuracy and the zero-ratio Poisson’s property. Geometrical parameters are also investigated to ascertain the relationship between the new zero-Poisson ratio honeycomb structure’s geometrical characteristics and the structure’s flexibility.