Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
278105 | International Journal of Solids and Structures | 2012 | 10 Pages |
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.
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Authors
Mustapha Bouakba, Abderrezak Bezazi, Fabrizio Scarpa,