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Experimental Study and Model Calculations of Metal Combustion in Al/Ap Underwater Explosives

Published online by Cambridge University Press:  15 February 2011

Philip J. Miller  and
Raafat H. Guirguis
Philip J. Miller
Affiliation:
Detonation Physics Branch, NAVSWC, White Oak Laboratory, Silver Spring, Maryland 20903-5000
Raafat H. Guirguis
Affiliation:
Detonation Physics Branch, NAVSWC, White Oak Laboratory, Silver Spring, Maryland 20903-5000
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Abstract

A small-scale laboratory experiment in which the detonation products are confined was designed such as to yield for small charges (as little as 1/2 gram) gas expansion rates comparable to those due to the underwater detonation of large-scale charges. The resulting slow expansion allows the aluminum and the other non-ideal components typically used in underwater explosives to react to completion within the time frame of the experiment. Both ideal and non-ideal aluminized explosives were tested. The traditional Jones-Wilkins-Lee (JWL) equation of state reproduced the measurements in the case of the ideal explosives. An extended JWL equation of state in which the time-dependent late energy release is introduced was adjusted until it reproduced the measurements of the non-ideal explosive tested. This derived time-dependent equation of state also reproduced the data of large-scale cylinder tests and underwater detonations using the same non-ideal explosive.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 296: Symposium Y – Structure and Properties of Energetic Materials , 1992 , 299
Copyright
Copyright © Materials Research Society 1993

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