Accession Number : AD0431736


Title :   TEMPERATURE-YIELD STRENGTH CORRELATION OF THE CRATER SIZE PRODUCED IN ALUMINUM BY THE HYPERVELOCITY IMPACT OF ALUMINUM SPHERES


Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD


Personal Author(s) : Piacesi, R ; , R ; Dawson, V C D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/431736.pdf


Report Date : 30 Aug 1963


Pagination or Media Count : 26


Abstract : An investigation was made to determine the correlation between target temperature and target yield strength for the hypervelocity impact of aluminum spheres upon semi-infinite aluminum targets. It was shown that exact correlation does exist. In the velocity range covered in the experiment (12,700 feet per second to 21,750 feet per second) the crater volume was dependent on the -.396 power of the yield strength. It was also observed that a transition region exists at an impact velocity of about 13,000 feet per second, such that the crater volume is not linearly dependent on the kinetic energy of the projectile, but that for velocities from 13,000 feet per second and up to at least 21,750 feet per second the crater volume is dependent on the velocity to the 1.78 power.


Descriptors :   *TARGETS , *CRATERING , *IMPACT SHOCK , *TERMINAL BALLISTICS , TEMPERATURE , SPHERES , ALUMINUM , HYPERVELOCITY PROJECTILES


Subject Categories : Mechanics
      Ballistics


Distribution Statement : APPROVED FOR PUBLIC RELEASE