FE analysis of the in-plane mechanical properties of a novel Voronoi-type lattice with positive and negative Poisson's ratio configurations

M Bouakba, A Bezazi, FL Scarpa

Research output: Contribution to journalArticle (Academic Journal)peer-review

20 Citations (Scopus)

Abstract

This work presents a novel formulation for a Voronoi-type cellular material with in-plane anisotropic behaviour, showing global positive and negative Poisson's ratio effects under uniaxial tensile loading. The effects of the cell geometry and relative density over the global stiffness, equivalent in-plane Poisson's ratios and shear modulus of the Voronoi-type structure are evaluated with a parametric analysis. Empirical formulas are identified to reproduce the mechanical trends of the equivalent homogeneous orthotropic material representing the Voronoi-type structure and its geometry parameters. Crown Copyright (c) 2012 Published by Elsevier Ltd. All rights reserved.

Translated title of the contributionFE analysis of the in-plane mechanical properties of a novel Voronoi-type lattice with positive and negative Poisson's ratio configurations
Original languageEnglish
Pages (from-to)2450-2459
Number of pages10
JournalInternational Journal of Solids and Structures
Volume49
Issue number18
DOIs
Publication statusPublished - 15 Sep 2012

Keywords

  • Lattice structures
  • Elastic behaviour
  • Simulation
  • Finite element analysis
  • 2-DIMENSIONAL CELLULAR SOLIDS
  • ELASTIC PROPERTIES
  • POLYURETHANE FOAMS
  • HONEYCOMBS
  • BEHAVIOR
  • IRREGULARITY
  • DEFORMATION
  • COMPRESSION
  • STIFFNESS
  • CELLS

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