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Proceedings Paper

Dynamic photoelasticity with a split Hopkinson pressure bar
Author(s): David R. Morris; A. J. Watson
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Paper Abstract

To observe the behaviour of materials subject to impact shock loads, accurate high frequency measurements are vital. The measurement of ultra short pulses (less than 50 microseconds) can be carried out by means of electrical resistance strain guages (ERSGs) . The ERSG's also pick up electromagnetic interference signals. Dynamic photoelasticity was used as a check for the ERSG records. Dynamic photoelastic tests were carried out using a Barr and Stroud CP5 high speed rotating mirror camera. The timing of the event and illumination was critical. Important confirmatory results were obtained by this technique.

Paper Details

Date Published: 1 April 1991
PDF: 8 pages
Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); doi: 10.1117/12.24070
Show Author Affiliations
David R. Morris, Univ. of Sheffield (United Kingdom)
A. J. Watson, Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 1358:
19th Intl Congress on High-Speed Photography and Photonics
Peter W. W. Fuller, Editor(s)

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