Accession Number : AD0817973

Title :   AN INVESTIGATION OF THE DEBRIS CLOUD PRODUCED BY THE IMPACT OF SPHERES ON THIN METAL SHEETS.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Carey, Donald Albert

Report Date : JUN 1967

Pagination or Media Count : 125

Abstract : An experimental investigation of the debris cloud produced by the impact of 1/8 inch. diameter spheres of copper and cadmium on 1/16 inch. sheets of like materials was conducted. Calculations of the energy delivered to copper witness plates by solid and liquid phases of the debris cloud were made using volume-energy relationships. Velocity of the cloud front was determined through use of sequential flash X-rays. Phases of the cloud were determined by employing a combination of photographic, radiographic, and crater measurement techniques. Variations in the phases of the cloud with three selected velocities for each bumper-projectile combination were compared with the predicted phase in the velocity range of 23000 to 3000 ft/sec. Energy, energy density, momentum, and mass delivered to witness plates are determined as a function of cone angle. (Author)

Descriptors :   (*HYPERVELOCITY PROJECTILES, IMPACT SHOCK), (*SPACECRAFT, SHIELDING), SHEETS, THESES, SPHERES, COPPER, CADMIUM, CRATERING, VELOCITY, PENETRATION, LIGHT GAS GUNS, ENERGY, PRESSURE, INSTRUMENTATION, MEASUREMENT.

Subject Categories : Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE