FRACTOGRAPHIC ANALYSES OF DENSIFIED CERAMICS AND GLASS-CERAMICS BALLISTICALLY IMPACTED BY CALIBER .30 M2 PROJECTILES

Abstract

Utilizing low magnification, fractographic analyses was conducted on low-temperature densified ceramics and glass-ceramics ballistically impacted by caliber .30 M2 projectiles. From examinations of fracture-exposed surfaces, the macroscopic sequence of ballistic fracture occurring outside the initial conoid was determined and found to be qualitatively similar for both material classes and for impact by both BALL and AP projectiles. Observations indicate that a number of imperfections such as irregularities in as-received specimen surfaces and internal macroporosity induce alterations in ballistic crack fronts.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1970
Accession Number
AD0712306

Entities

People

  • William A. Brantley
  • William D. Long

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Oxides
  • Armor
  • Cameras
  • Carbides
  • Ceramic Materials
  • Compound Semiconductors
  • Diameters
  • Engineered Materials
  • Geography
  • Low Temperature
  • Materials
  • Mechanics
  • Observation
  • Porosity
  • Projectiles
  • Silicon
  • Silicon Carbide

Readers

  • Materials Science (Mechanical Engineering).
  • Surface Coatings Technology.
  • ballistics.