Energy-Efficient Penetration of Targets
Final rept. Oct 1985-Sep 1989
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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In general, the performance of a kinetic energy KE penetrator against most armor targets increases with velocity regardless of the particular penetratortarget interaction mode. It is possible to show that there exists an optimum velocity which maximizes the performance of an impacting penetrator for a given expenditure of energy. Simple graphical methods are described that determine the optimum velocity from general performancevelocity plots. These graphic methods may also be applied to experimental data alone. In addition, simple analytic models which describe the velocity dependent penetration perforation performance of KE penetrators are examined and extended. These models may be used to assess explicitly the influence of parameters such as target strength and density, and penetrator mass, strength, and density. For some models in this analysis, the explicit relations between the optimum striking velocity for a specified KE value and the penetratortarget parameters are described.
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