A Comparison of Moire Interferometry qnd Digital Image Correlation
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
Pagination or Media Count:
This research effort studied the effect of subset size and step size on the spatial resolution and accuracy of Digital Image Correlation DIC. In addition, DIC was compared with moire interferometry in an attempt to give future researchers guidance on which method would be appropriate for their research. Strains fields were calculated from displacement fields measured by each method. The strain fields were then compared. The main findings of the research were that increased subset sizes caused a smoothing of data increased step sizes reduced the resolution of the data DIC is an accurate displacement measurement technique the spatial resolution of DIC is less than that of moir interferometry DIC is a highly portable displacement measurement system DIC is much faster than moir interferometry.
- Computer Hardware