id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_tmhpimnq2zemtgrw7nrvxvoice	M. S. Kirugulige	Measurement of Fracture Parameters for a Mixed-Mode Crack Driven by Stress Waves using Image Correlation Technique and High-Speed Digital Photography	2009.0	15	.pdf	application/pdf	9188	1381	75	Measurement of Fracture Parameters for a Mixed-Mode Crack Driven by Stress Waves using Image Correlation Technique and High-Speed Digital Photography deformations is assessed by conducting benchmark tests on image intensity variability, rigid translation and rigid rotation. relative to the initial crack plane to produce mixed-mode loading conditions in a three-point bend displacement field histories and dominant strains from the time of impact up to complete fracture Over-deterministic least-squares analyses of crack-tip radial and tangential displacements are used to obtain mixed-mode fracture parameters. The fracture parameters determined from radial displacements seem more robust even when fewer number of higher order terms in the crack-tip KEY WORDS: DIC, dynamic crack growth, high-speed imaging, mixed-mode SIF, optical metrology, accuracy and repeatability of displacements measured from these using the image correlation approach outlined earlier are directly affected by optical Figure 9: Acquired speckle images of 31 · 31 mm2 region near a mixed-mode crack at various times instants.	./cache/work_tmhpimnq2zemtgrw7nrvxvoice.pdf	./txt/work_tmhpimnq2zemtgrw7nrvxvoice.txt