Journal of Materials Science

, Volume 6, Issue 8, pp 1093–1099 | Cite as

An ultrasonic technique for measuring crack and craze velocities

  • E. H. Andrews
  • G. M. Levy
Papers

Abstract

A technique is described which employs ultrasonic waves in order to monitor the velocity of a slowly propagating discontinuity in a material subjected to stress in a liquid environment. The technique is particularly useful in the study of environmentally induced crack and craze propagation in polymeric materials. This paper describes the equipment, its operation and some preliminary results for one particular application.

Keywords

Polymer Polymeric Material Ultrasonic Wave Ultrasonic Technique Liquid Environment 

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References

  1. 1.
    E. B. Norris, S. A. Viaclovsky, andA. R. Whiting Proceedings of the Seventh Symposium on Non-destructive Evaluation of Components and Materials in Aerospace, Weapon Systems and Nuclear Applications (American Society for Non-Destructive Testing, San Antonio, Texas, April 1969), p. 32.Google Scholar
  2. 2.
    E. H. Andrews andJ. Willis, to be published.Google Scholar
  3. 3.
    E. H. Andrews andL. Bevan, to be published.Google Scholar

Copyright information

© Chapman and Hall Ltd 1971

Authors and Affiliations

  • E. H. Andrews
    • 1
  • G. M. Levy
    • 1
  1. 1.Department of Materials, Queen Mary CollegeUniversity of LondonUK

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