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Proceedings Paper

The Use Of A Single Spark Source To Investigate The Dynamic Photoelastic Behaviour Of Notched Bars
Author(s): R. A.W. Mines
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Paper Abstract

Araidite models of two types of notched bar, namely three point bend and double notched bar, were subjected to an impact from a falling weight pendulum The resultant dynamic photoelastic patterns were captured using a 100 nano second duration spark source, a lens polariscope and a still camera. The spark was fired at different times, to an accuracy of 1 microsecond, for each reproducible impact and hence a sequential series of photographs built up. Dynamic stress intensity factors at the notch tips were measured from the photo-elastic fringes at the given times.

Paper Details

Date Published: 1 February 1985
PDF: 5 pages
Proc. SPIE 0491, 16th Intl Congress on High Speed Photography and Photonics, (1 February 1985); doi: 10.1117/12.967935
Show Author Affiliations
R. A.W. Mines, Oxford University (England)

Published in SPIE Proceedings Vol. 0491:
16th Intl Congress on High Speed Photography and Photonics
Michel L. Andre; Manfred Hugenschmidt, Editor(s)

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