Advanced intensity correlation method for evaluating Poisson's ratio of fiberlike material.
An advanced intensity correlation method for evaluating Poisson's ratio of fiberlike materials is presented. The method is based on wave diffraction theory and digital image correlation (DIC) analysis. With the new method, the transverse strain of the fiberlike specimen under stretch can be conveniently and accurately determined by fitting the DIC-measured deformation distributions as a straight line following the theoretical diffraction model. The validity and flexibility of the method have been verified by numerical simulations and an experiment. The method can be readily extended to the characterizations of many fiberlike materials.
Hu
Zhenxing
Z
Department of Engineering Mechanics, FML, Tsinghua University, Beijing 100084, People's Republic of China.
Xie
Huimin
H
Hua
Tao
T
Wang
Zhaoyang
Z