Spall Strength of Tungsten Carbide

Abstract

Spall strength of a hot-pressed tungsten carbide manufactured by Cercom Inc. referred to as CER-WC. is determined by performing plane shock wave experiments as a function of shock-induced compressive stress and its duration. Shock-induced stress varied between 3.5 and 24 GPa. The duration of shock-induced stress. i.e.. pulse with. ranged from 0.35 to 1.13 mus. These experiments showed that CER-WC retained substantial spall strength to 24 GPa. i.e.. around 3x the value of the Hugoniot elastic limit. Spall strength of CER-WC was not significantly influenced by the pulse-width of shock-induced compression. Spall strength of CER-WC decreased from a value of 2.06 +/- 0.04 to 1.22 + 0.38 GPa as shock-induced stress increased from 3.4 to 24 GPa.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2004
Accession Number
ADA427318

Entities

People

  • Dattatraya P. Dandekar

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Carbides
  • Composite Materials
  • Compression
  • Elastic Properties
  • Elastic Waves
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Secondary Waves
  • Shear Strength
  • Shock Waves
  • Tensile Strength
  • Tungsten
  • Tungsten Carbides
  • Waves

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Metallurgy