UNSPECIFIED (1993) PHOTOELASTICITY STRESS-ANALYSIS USING CARRIER FRINGE AND FFT TECHNIQUES. OPTICS AND LASERS IN ENGINEERING, 18 (2). pp. 79-108. ISSN 0143-8166

Full text not available from this repository.

Abstract

A novel carrier fringe technique for photoelasticity stress analysis is described and verified experimentally. Linear carrier fringes generated by using a quartz wedge are superimposed on fringes formed by the stressed model. The resultant fringe pattern is then captured using a charge coupled device camera and stored in a digital frame buffer. A fast Fourier transform method is then used to process the complete photoelastic fringe image over the whole surface of the model. The experiment also uses a minimum spanning tree phase unwrapping strategy to create a continuous map of the whole stress field. Finally, the whole principal stress difference field has been calculated and plotted from one single exposure showing the methods' potential for use as a reflection analysis system suitable for application to nonstationary objects and complicated stress patterns.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	OPTICS AND LASERS IN ENGINEERING
Publisher:	ELSEVIER SCI LTD
ISSN:	0143-8166
Date:	1993
Volume:	18
Number:	2
Number of Pages:	30
Page Range:	pp. 79-108
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/21422

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item