1. Determination of Poisson’s Ratio of Kraft Paper Using Digital Image Correlation
- Author
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Zhongchen Bi, Xing Wei, Xiaolong Cao, and Yong Xie
- Subjects
symbols.namesake ,Digital image correlation ,Containerboard ,Mathematical analysis ,symbols ,Analytical chemistry ,Deformation (meteorology) ,Anisotropy ,Poisson distribution ,Measure (mathematics) ,Kraft paper ,Poisson's ratio ,Mathematics - Abstract
Kraft paper is the most popular raw material for based-paper packaging containers. Poisson’s ratio is an important index to indicate the inherent property of materials. There were many difficulties to measure Poisson’s ratio of kraft paper using the traditional contract methods, because of its micro deformation and anisotropy. A simple and efficient non-contract method had been proposed to solve this problem using DIC(Digital Image Correlation) method in this paper. Obtained the relative deformation of samples by calibrated CCD images, Poisson’s ratio could be computed. The test results indicated that Poisson’s ratios of corrugating medium in the MD(Machine Direction) and CD (Cross-machine Direction) were 0.275 and 0.119, and ones of linerboard were 0.275 and 0.119 in MD and CD, respectively. This study showed that DIC was a new approach to measure Poisson’s ratio of kraft paper.
- Published
- 2012