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Proceedings Paper

Novel method of utilization of birefringent coating as an effective NDE tool
Author(s): A. V. S. S. S. R. Sarma; S. Annamala Pillai; Jeby Philip
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Paper Abstract

The photoelastic or birefringent coating technique is a unique tool for quick and reliable estimation of wholefield stress/strain distribution at any locations in a loaded structural component. This technique can also be used as a powerful NDT tool. This requires loading of the component to a sufficient level (straining to about 300 microstrain) to obtain enough response in the photoelastic coating. Use of `reverse loading concept/method' enables overcoming this problem to a great extent. This paves way for extensive application of this method with its advantages of high reliability and simplicity. Demonstrative examples for validating this concept along with the discussion of the related experimental/test parameters are presented.

Paper Details

Date Published: 29 April 1999
PDF: 6 pages
Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); doi: 10.1117/12.346820
Show Author Affiliations
A. V. S. S. S. R. Sarma, Vikram Sarabhai Space Ctr. (India)
S. Annamala Pillai, Vikram Sarabhai Space Ctr. (India)
Jeby Philip, Vikram Sarabhai Space Ctr. (India)

Published in SPIE Proceedings Vol. 3729:
Selected Papers from International Conference on Optics and Optoelectronics '98
Kehar Singh; Om Prakash Nijhawan; Arun Kumar Gupta; A. K. Musla, Editor(s)

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