Publication
Title
A digital image correlation method for fatigue test experiments
Author
Abstract
In this paper, a method based on the digital image correlation (DIC) technique is proposed to monitor the crack growth process during a cyclic fatigue test. Stroboscopic illumination is used to acquire DIC speckle pattern images while the test sample is dynamically loaded. The proposed DIC algorithm uses the fact that the load is periodic to increase the accuracy of the displacement field estimates (a sinusoidal fitting method is introduced for this purpose). Using the appropriate post-processing both the crack lengths and the stress intensity factors can be estimated in function of the number of fatigue cycles. A validation test case on an aluminum U-profile will be presented in the paper. (C) 2008 Elsevier Ltd. All rights reserved.
Language
English
Source (journal)
Optics and lasers in engineering. - Barking
Publication
Barking : 2009
ISSN
0143-8166
Volume/pages
47:3-4(2009), p. 371-378
ISI
000264096500012
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
[E?say:metaLocaldata.cgzprojectinf]
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 04.11.2014
Last edited 09.08.2017