Preliminary Shock Wave Studies in Alumina and Tungsten Carbide

Abstract

The present report describes the results of shock wave investigations conducted to determine shear strengths of two materials: an alumina (Al203), commercially produced by Coors as AD995, and pressure assisted densified tungsten carbide (WC) manufactured by Cercom. In addition, an effort was made to recover shock compressed AD995 in order to determine the change in the initial microstructure of AD995 due to shock and release wave propagation. The shear strength of these materials was obtained from the measurements of longitudinal and lateral stress under a given compression. Shock Hugoniot of AD995 and WC reported in earlier investigations provided the longitudinal stresses necessary to obtain the values of shear strengths. These when used in conjunction with the lateral stress measured by means of a manganin gage in the current investigation yield the values of shear strength for these materials.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2001
Accession Number
ADA400832

Entities

People

  • J. C. Millett
  • N. K. Bourne

Organizations

  • Cranfield University

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Carbides
  • Elastic Waves
  • Equations
  • Equations Of State
  • High Pressure
  • Materials
  • Measurement
  • Secondary Waves
  • Shear Strength
  • Shear Stresses
  • Shock Waves
  • Stress Waves
  • Stresses
  • Tungsten
  • Tungsten Carbides
  • Waves

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials