TITLE

An analytical estimate for mass loss from a high velocity rigid penetrator

AUTHOR(S)
Foster, J. C.; Jones, S. E.; Toness, O.; DeAngelis, R. J.; Rule, W. K.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p1125
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Analytical models of the penetration process focus on estimating depth of penetration based on target density, target strength (sometimes associated with the unconfined compressive strength of the target for geological targets), the areal density of the penetrator (W/A), and the impact velocity. In this paper, an expression for work is used in conjunction with thermodynamic considerations to devise a simple estimate for mass lost by a high velocity projectile during the penetration process. The result shows that the mass loss is directly proportional to the tunnel length and the target shear strength. The constant of proportionality is not easy to deduce, however, in that it contains an unusual factor from the work analysis. A method for estimating target shear under high pressure from penetration experiments is introduced.
ACCESSION #
5985617

 

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