Accession Number : ADA313888

Title :   Comparison of Penetration Efficiency in Axial and Planer Symmetries.

Descriptive Note : Technical rept.,

Corporate Author : TEXAS UNIV AT AUSTIN INST FOR ADVANCED TECHNOLOGY

Personal Author(s) : Partom, Y.

PDF Url : ADA313888

Report Date : NOV 1993

Pagination or Media Count : 150

Abstract : It has been known for some time that, for a given target, a flat cross section projectile would penetrate deeper than a circular cross section projectile, other factors being equal. This invoked the idea that a cruciform cross section projectile would have an advantage over the circular cross section projectile. We used AUTODYN2D to simulate penetration of steel and tungsten alloy projectiles into steel targets for axial and planar symmetries. The purpose was to see to what extent the planar projectiles have an advantage over circular projectiles. We found that: planar projectiles penetrate more than circular projectiles at low velocities (1.5 km/s); planar projectiles lose their advantage with increasing velocity; much larger target dimensions are needed for full confinement of planar projectiles; and craters created by planar projectiles are much wider and their width is not constant.

Descriptors :   *PROJECTILES, COMPARISON, EFFICIENCY, TARGETS, STEEL, LOW VELOCITY, PENETRATION, SYMMETRY, PLANAR STRUCTURES, CROSS SECTIONS, CIRCULAR, CRATERS, TUNGSTEN ALLOYS, CRUCIFORM CONFIGURATIONS.

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE