Novel method of utilization of birefringent coating as an effective NDE tool

A. V. S. S. S. R. Sarma; S. Annamala Pillai; Jeby Philip

doi:10.1117/12.346820

29 April 1999 Novel method of utilization of birefringent coating as an effective NDE tool

A. V. S. S. S. R. Sarma, S. Annamala Pillai, Jeby Philip

Proceedings Volume 3729, Selected Papers from International Conference on Optics and Optoelectronics '98; (1999) https://doi.org/10.1117/12.346820
Event: Selected Papers from the International Conference on Optics and Optoelectronics, 1998, Dehradun, India

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.

Citation Download Citation

A. V. S. S. S. R. Sarma, S. Annamala Pillai, and Jeby Philip "Novel method of utilization of birefringent coating as an effective NDE tool", Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); https://doi.org/10.1117/12.346820

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