HYPERVELOCITY IMPACT STUDIES

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.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1966
Accession Number
AD0488153

Entities

People

  • Robert F. Rolsten

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Elastic Waves
  • Explosive Welding
  • Explosives
  • Geometry
  • Grain Size
  • Materials
  • Materials Laboratories
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Metals
  • Shock Waves
  • Stress Waves
  • Stresses
  • Tensile Strength
  • Welds

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Powder metallurgy of Titanium alloys.
  • ballistics.

Technology Areas

  • Hypersonics