Accession Number : ADA320010

Title :   Concrete Penetration by Eroding Projectiles: Experiments and Analysis.

Descriptive Note : Final rept.,

Corporate Author : ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL N J

Personal Author(s) : Gold, Vladimir M.

PDF Url : ADA320010

Report Date : DEC 1996

Pagination or Media Count : 34

Abstract : Spherical-nose copper and tantalum rods with aspect ratios between 4.0 and 14.6 were gun launched against 91-cm dia and 91-cm long concrete and simulant reinforced concrete targets with velocities ranging from 0.15 cmlps to 0.19 cm1%s. Targets were instrumented with a sequence of break gages which provided valuable data for characterizing the penetration process. Target hole profiles and projectile residual masses were measured and reported. Analysis of the penetration performance of projectiles was performed within the framework of the modified hydrodynamic theory of penetration. Based on the results of these calculations, the penetration efficiencies of the copper and the tantalum projectiles are compared as functions of impact velocities. Analysis of the penetration resistance of the simulant reinforced concrete targets was based on treating the targets as composites", comprised of layers of concrete proper and reinforcing steel; the results of these calculations are compared with the experimental data. Using this theory, the penetration resistance of a concrete/steel/concrete composite" is investigated as a function of the following parameters: thickness of the surface layer of the concrete, thickness of the steel reinforcement, and impact velocity.

Descriptors :   *PROJECTILES, *PENETRATION, *ARMOR PIERCING AMMUNITION, *REINFORCED CONCRETE, VELOCITY, THICKNESS, EXPERIMENTAL DATA, IMPACT, LAYERS, RESISTANCE, THEORY, EFFICIENCY, CONCRETE, STEEL, SEQUENCES, SURFACES, COPPER, PLASTIC PROPERTIES, RODS, TANTALUM, HYDRODYNAMICS, GAGES, ASPECT RATIO, REINFORCING MATERIALS, GUN LAUNCHED.

Subject Categories : Ammunition and Explosives
      Armor
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE