Crack Velocities in Natural Rubber.

Abstract

Measurements are reported of the limiting velocity of a running crack in biaxially stretched sheets of unfilled and carbon-black-filled natural rubber. (Author) The crack velocity was found to increase with the cleavage stain ey and also with the strain e(x) parallel to the direction of tearing, reaching values of over 100m/s at the highest strain levels employed. These crack velocities are shown to be close to those predicted by Mott's theory, i.e., about one-third of the velocity of sound, when a strong strain-dependence is recognized for the velocity of a sound in rubber.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1982
Accession Number
ADA114298

Entities

People

  • Alan Neville Gent
  • P. Marteny

Organizations

  • University of Akron

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • California
  • Chemical Engineering
  • Chemistry
  • Civil Engineering
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Engineering
  • Materials
  • Materials Science
  • Military Research
  • Natural Rubber
  • Photographic Film
  • Physics
  • Polymers
  • United States

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.