Accession Number : AD0623650

Title :   THE RESISTANCE OF HOLLOW GLASS MODELS TO UNDERWATER EXPLOSIONS AT GREAT DEPTHS. I. SPHERES,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Faux,W. H. ; Niffenegger,C. R.

Report Date : 30 SEP 1965

Pagination or Media Count : 28

Abstract : Hollow glass spheres, 10 in. in diameter, were exposed to explosions of 1-lb charges at a series of depths in the ocean. At a depth of 300 ft, a sphere could not be placed closer than 19 ft from the charge without breaking. At 22,000 ft, the sphere could be as close as about 2.5 ft without damage. At this smaller range, the shock wave peak pressure was estimated to be an order of magnitude greater than at 19 ft, indicating a greatly increased strength of the spheres. (Author)

Descriptors :   (*SPHERES, EXPLOSION EFFECTS), (*UNDERWATER EXPLOSIONS, EXPLOSION EFFECTS), (*GLASS, SHOCK RESISTANCE), FRACTURE(MECHANICS), PRESSURE, TENSILE PROPERTIES, MODEL TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE