Leak Testing using Photoelasticity

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Johannes Vrana

R & D, Engineering, R & D Vrana, Germany, Joined Jan 2014,

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Johannes Vrana

R & D, Engineering, R & D
Vrana,
Germany,
Joined Jan 2014

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10:33 Feb-26-2024
https://www.ndt.net/forum/thread.php?msgID=87649#87649
Leak Testing using Photoelasticity

Has anybody ever used photoelasticity for leak testing and is there some literature on this topic?

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Edward Ginzel

R & D, Materials Research Institute, Canada, Joined Nov 1998,

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Edward Ginzel

R & D,
Materials Research Institute,
Canada,
Joined Nov 1998

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¹²⁹ ^Stand

12:32 Feb-26-2024
https://www.ndt.net/forum/thread.php?msgID=87652#87652
Re: Leak Testing using Photoelasticity In Reply to Johannes Vrana at 10:33 Feb-26-2024 (Opening).

Johannes, I do not think that photoelasticity would be appropriate. However, Settles describes a schlieren system that he configured in 1997 using a linear fluorescent tube and had a viewing area of 1x3m. Convective heat transfer and gas leaks provide the variation in density required for the schlieren principle to work.
See; Schlieren and Shadowgraph Techniques, by G.S.Settles, Springer Verlag, 2001 (page 107)