Authors: Xiangtao Xu Runqiu Huang Hua Li Qiuxiang Huang
Publish Date: 2014/04/21
Volume: 48, Issue: 2, Pages: 853-857
Abstract
Poisson’s ratio is defined as the negative value of the ratio of the radial strain and the corresponding axial strain caused by uniformly distributed axial stress within the scope of the material’s proportional limits It reflects the lateral deformation of the material and is widely used in elastic theory Previous studies have shown that the upper and lower limits of Poisson’s ratio are 05 and −1 respectively and Poisson’s ratio for the vast majority of materials is 1/3 Lakes 1987 Shan et al 2006 In the field of numerical analysis of geotechnical engineering and engineering design Poisson’s ratio is an important parameter reflecting the lateral deformation of the rock and soil mass and it directly affects the strength and deformation characteristics of the rock and soil mass
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