Acta Scientific Applied Physics

Research Article Volume 3 Issue 7

Two-dimensional Lattice Auxetic Structures Based on Square Unit Cells

Julian Plewa*

Malgorzata Plonska University of Silesia, Katowice, Poland

*Corresponding Author: Julian Plewa, Malgorzata Plonska University of Silesia, Katowice, Poland.

Received: June 09, 2023; Published: June 30, 2023


The article explores the possibility of producing auxetic lattice structures using rigid square unit cells. An effective method of connecting unit cells to each other is proposed, the resulting structures are constructed, and the relationships - including the magnitude of linear expansion and porosity - associated with the transition of the structure from the closed to the open position are determined. This is related to the stretching procedure of the structure, during which the square unit cells undergo both rotation and displacement. By folding the planar structures one on top of the other, a 2D type volumetric structure has been produced exhibiting auxetic behaviour. Such layered structures exhibit synchronised movement when opening or closing, resulting in uniform and easily controlled deformations. On this basis, physical models have been built to experimentally confirm the relationships determined with geometrical models. A set of auxetic networks with enhanced stiffness constructed from rigid square unit cells in the form of solid squares and square frames has been proposed.

Keywords: Lattice Structures; Rotating Squares; Negative Poisson's Ratio


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Citation: Julian Plewa. “Two-dimensional Lattice Auxetic Structures Based on Square Unit Cells". Acta Scientific Applied Physics 3.7 (2023): 14-32.


Copyright: © 2023 Julian Plewa. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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