HYPERVELOCITY PROJECTION TECHNIQUES AND IMPACT STUDIES JANUARY 1959 - JUNE 1960

Abstract

A program was initiated to obtain terminal ballistic data for masses up to five grams starting at velocities of 4.6 km/sec and extending into the hypervelocity region as far as possible. Terminal ballistic data was obtained using aluminum and tungsten carbide projectiles at velocities from near zero to 6.4 km/sec. Both conventional powder guns and light-gas guns were used to obtain this data. Various target materials were examined including lead, steel, copper and two kinds of aluminum, 1100 F and 2014-T6. The data show that for the velocity range and materials considered, the cavity shape approaches that of a hemisphere when the impact is in the hypervelocity region. Also, the ratio of impact energy to crater volume as a function of impact velocity seems to approach a constant value in the hypervelocity region for each projectile-target system except for tungsten carbide into lead.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1960
Accession Number
AD0627801

Entities

People

  • S. M. Halperson
  • W. W. Atkins

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Ballistics
  • Cameras
  • Diameters
  • Extrapolation
  • Gas Guns
  • Guns
  • High Temperature
  • Launch Tubes
  • Light Gas Guns
  • Materials
  • Military Research
  • Photographs
  • Photography
  • Physical Properties
  • Tungsten
  • Tungsten Carbides

Fields of Study

  • Physics

Readers

  • Atmospheric Science/Meteorology
  • Surface Engineering/Surface Coating Technology.
  • ballistics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow