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 contribution | FE analysis of the in-plane mechanical properties of a novel Voronoi-type lattice with positive and negative Poisson's ratio configurations |
|---|---|
| Original language | English |
| Pages (from-to) | 2450-2459 |
| Number of pages | 10 |
| Journal | International Journal of Solids and Structures |
| Volume | 49 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 15 Sept 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