Accession Number:

AD0488153

Title:

HYPERVELOCITY IMPACT STUDIES

Descriptive Note:

Final rept. 1 Feb-15 Oct 1965

Corporate Author:

TECHNICAL OPERATIONS INC BURLINGTON MA

Personal Author(s):

Report Date:

1966-03-01

Pagination or Media Count:

57.0

Abstract:

Two different problems related to hypervelocity impact were studied. The first involved the formation of a rippled surface produced at the interface of a stack of plates impacted by a projectile. The rippled structure was produced, as observed in cross section, as a sine wave, a sawtooth structure, and as oriented waves with a peaked crest. Some plates were welded permanently others separated as a result of failure in the base metal. A plausible explanation for the ring structure was found. The second problem involved the preparation and evaluation of homogeneous 1100-0, 7075-0, and 7075-T6 aluminum ingots for use as hypervelocity impact targets. An attempt was made to control grain size and to provide equiaxed grains. Tensile test data obtained in longitudinal and transverse specimens include yield and ultimate and true stress to fracture.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE