Accession Number : AD0627652

Title :   AN INVESTIGATION OF THE DYNAMIC DEFORMATION OF SMALL COPPER BALLS,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Cole,Houston M.

Report Date : 27 DEC 1965

Pagination or Media Count : 61

Abstract : Annealed copper balls of the type used in tarage and crusher gages were compressed at compression speeds from 0.01 in/min to about 400 ft/sec. It was found that the force-deformation curve at any two velocities of compression are related as the ratio of the mean velocities of compression. The force-deformation curve roughly follows that of a spring-mass system; however, a more accurate method is described which gives pressures from large explosions which are much closer to actual piezoelectric gage measurements than found by previous calculations. (Author)

Descriptors :   (*COPPER, DEFORMATION), SPHERES, CRUSHER GAGES, FORCE(MECHANICS), VELOCITY, LOADS(FORCES), EXPLOSIONS, DAMAGE, PRESSURE

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE