Affiliation:
1. Department of Mechanical Engineering and Department of Materials Science University of Wisconsin Madison WI 53706 USA
Abstract
Poisson's ratio in chiral isotropic elastic solids can be larger or smaller than the classical thermodynamic bounds. The effect of Cosserat coupling constant k is studied. Analysis shows that solids with weak coupling exhibit Poisson's ratio anomalies for larger specimen sizes than corresponding solids with strong coupling. Experiments on a quasi‐isotropic composite with chiral inclusions show Poisson's ratio greater than 0.5.
Funder
National Science Foundation
Subject
Condensed Matter Physics,Electronic, Optical and Magnetic Materials