Low fineness ratio kinetic energy penetrators
We have modeled the penetration process of a low fineness ratio, heavy metal kinetic energy projectile impacting a semi-infinite steel target at and above typical ordnance speeds using the Lawrence Livermore National Laboratory (LLNL) two-dimensional, finite difference code, GLO. We have also performed ballistic experiments using an LLNL two-stage light gas gun to gather data over a range of impact speeds from 2.0 to 7.5 km/s. On this basis, we have constructed relationships between penetration efficiency (total penetration/projectile length), projectile fineness ratio (projectile length/profile diameter), and projectile impact speed. Furthermore, we have constructed a three-dimensional surface of penetration efficiency for tungsten alloy projectiles impacting semi-infinite steel. From these constructions, it is straightforward to determine minimum kinetic energy requirements at a target for a prespecified level of penetration. 12 refs., 16 figs., 3 tabs.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6265360
- Report Number(s):
- UCRL-99484; CONF-890585-4; ON: DE89008828
- Resource Relation:
- Conference: 11. international symposium on ballistics, Brussels, Belgium, 9 May 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PENETRATORS
PERFORMANCE
PROJECTILES
COMPUTERIZED SIMULATION
G CODES
IMPACT SHOCK
KINETIC ENERGY
VELOCITY
WEAPONS
COMPUTER CODES
ENERGY
SIMULATION
990000* - General & Miscellaneous
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)