Threshold Damage in Radome Materials by Discrete Water Impact (Ballistics Range Investigation)

Abstract

Techniques have been developed in the aerophysics ballistic range for impacting test specimens which discrete liquid and solid particles. The specimens were tested by NDT methods for detailed examination. Definite and repeatable thresholds of damage have been observed in slip-cast fused silica soak impregnated with a silicon varnish and other materials with variation in velocity of impact and drop tests. The results indicate that the continuing need for controlled discrete impact data of this type of supplement erosion data and to characterize damage in new materials. Results are presented for drop sizes of approximately 1mm and 2mm for a range of velocities from subsonic to 4000 feet/sec.

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Document Details

Document Type
Technical Report
Publication Date
Feb 13, 1973
Accession Number
AD0759973

Entities

People

  • John L. Lankford
  • Robert A. Leverance
  • Socrates A. Longas

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkanes
  • Ballistics
  • Ceramic Materials
  • Drops
  • Experimental Data
  • High Temperature
  • Maryland
  • Materials
  • Materials Laboratories
  • Measurement
  • Munitions
  • Optical Materials
  • Ordnance Laboratories
  • Particle Size
  • Particles
  • Photographs
  • Resistance

Readers

  • Fluid Dynamics.
  • Materials Science (Mechanical Engineering).
  • Surface Coatings Technology.