Theoretical Study on the Poisson’s Ratio of Tubular Braid’s Structure Considering Different Structural Deformation Regimes

Document Type : Original Article

Authors
Hadi Dabiryan
Mehrdad Arianpour
Majid Safar Johari
Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
10.48302/jtp.2026.570682.1350
Abstract
Abstract

In the first part of this paper, an experimental study was conducted to investigate the effect of some important structural parameters of braid structure on Poisson’s ratio. This paper aims to build some theoretical equations to predict the Poisson’s ratio by geometrical modelling. Poisson’s ratio of braid structure was studied in three different parts. First, the Poisson’s ratio was investigated at infinitesimal strains, and second, it was investigated at the area between two jamming of the structure (tensile and compressive jamming). Finally, an equation was derived to predict the Poisson’s ratio of braid structure at any point of its longitudinal strain. By using an exponential curve fitting, a modified equation was derived to predict the Poisson’s ratio of braid structure at infinitesimal strain area. The results of verification were satisfying.

Keywords: Tubular Braid; Poisson’s Ratio; Young’s modulus; structural parameters.

Keywords: Tubular Braid; Poisson’s Ratio; Young’s modulus; structural parameters.

Keywords: Tubular Braid; Poisson’s Ratio; Young’s modulus; structural parameters.
Keywords
Tubular Braid
Poisson&rsquo
s Ratio
Young&rsquo
s modulus
structural parameters
Subjects