Application of Digital Image Correlation Method to Biogel.

Authors :: Kwon, H. J.
Rogalsky, Allan D.
Kovalchick, Christopher
Ravichandran, Guruswami
Source :: Polymer Engineering & Science; Aug2010, Vol. 50 Issue 8, p1585-1593, 9p, 1 Black and White Photograph, 5 Diagrams, 3 Charts, 6 Graphs
Publication Year :: 2010
Abstract: The article presents the results of a study on the application of digital image correlation method (DIC) to biogel. The study found that evaluation of the planer strain through DIC enables the measurement of strain localization and Poisson's ratio. Under high stresses, the Poisson's ratio exceeded the standard assumption of 0.5 which was found to be caused by pore water leakage. The study concludes that loading rate increases do not cause much difference in the shape of stress-strain curves.