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Proceedings Paper

High Speed Photography Of The Interaction Of Shocks With Voids In Condensed Media
Author(s): M.Munawar Chaudhri; Lars-Ake Almgren; Algot Persson
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Paper Abstract

High-speed photography has been made of the collapse of 2.5-10 mm diameter glass and aluminium hollow spheres by water shocks of strength 5-20 kbar. The camera used was a multiple Kerr-Cell type, framing at speeds of up to 2 million frames second. The collapse process has been shown to be asymmetrical giving rise to 'jetting'. The impact of the 'jet' on the front wall of the void results in a localised secondary shock of intensity approximately equal to that of the primary shock. It is proposed that it is the localised secondary shock which is responsible for the sensitization of explosives containing gas pockets/voids.

Paper Details

Date Published: 1 March 1983
PDF: 7 pages
Proc. SPIE 0348, 15th Intl Congress on High Speed Photography and Photonics, (1 March 1983); doi: 10.1117/12.967768
Show Author Affiliations
M.Munawar Chaudhri, Cavendish Laboratory (England)
Lars-Ake Almgren, Nitro Nobel AB Vinterviken (Sweden)
Algot Persson, Nitro Nobel AB Vinterviken (Sweden)

Published in SPIE Proceedings Vol. 0348:
15th Intl Congress on High Speed Photography and Photonics
Lincoln L. Endelman, Editor(s)

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