In-plane elastic constants of a new curved cell walls honeycomb concept

A Harkati, D Boutagouga, E Harkati, A Bezazi, F Scarpa, Morvan Ouisse

Research output: Contribution to journalArticle (Academic Journal)

Abstract

This paper is focused on the identification of the in-plane elastic constants of a new design of auxetic (negative Poisson’s ratio) honeycomb configuration with curved cell walls by using analytical and numerical homogenization techniques. The sensitivity of the elastic constants is determined against the various cell geometry parameters. Good agreement between the analytical and numerical simulations is observed. We show that the specific curved wall honeycomb configuration proposed in this paper possesses a high in-plane shear compliance, tailored anisotropy and the possibility of inducing a negative Poisson’s ratio behaviour in baseline honeycomb configurations that would have otherwise positive inplane Poisson’s ratios.
Original languageEnglish
Article number106613
Number of pages12
JournalThin-Walled Structures
Volume149
Early online date14 Feb 2020
DOIs
Publication statusPublished - 1 Apr 2020

Keywords

  • honeycomb
  • homogenization
  • curvature walls
  • elasticity moduli
  • auxetic
  • refined model

Fingerprint Dive into the research topics of 'In-plane elastic constants of a new curved cell walls honeycomb concept'. Together they form a unique fingerprint.

  • Cite this