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Ultrasonic Inspection of Graphite-Epoxy Solid Rocket Motor Canisters

  • E. G. HennekeII
  • R. H. Moore
  • R. J. Churchill
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

Thick filament-wound composite materials are particularly attractive for use in solid rocket motor structures. However, these materials are difficult to inspect because of the scattering losses associated with multiple fiber layers. Damage caused by either low or high velocity impact which results in matrix cracking, delaminations and broken fibers cannot be tolerated because of the possibility of catastrophic system failure. American Research Corporation of Virginia has performed a 2-year Phase II Small Business Innovation Research contract to develop an ultrasonic inspection system for graphite/epoxy rocket motor canisters [1]. This paper details the experimental apparatus and testing of rocket motor canisters, presents testing results and discusses observations and detection thresholds.

Keywords

Impact Damage High Velocity Impact Rocket Motor Ultrasonic Inspection Rubber Liner 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Churchill, R. J., Lane, S. S., Moore, R. H. and Groger, H. P., “Characterization of Damage in Composite Rocket Motor Canisters,” Final Report, U. S. Navy, Naval Weapons Center, China Lake, California, Contract No. N65030–87-C-0177, June 1989.Google Scholar
  2. 2.
    Peterson, W. W.,Birdsall, T. G. and Fox, W. C., “The Theory of Signal Detectability,” Trans. IRE, PGIT-4, p. 171, 1954.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • E. G. HennekeII
    • 1
  • R. H. Moore
    • 2
  • R. J. Churchill
    • 2
  1. 1.Department of Engineering Science and MechanicsVirginia Polytechnic Institute and State UniversityBlacksburgUSA
  2. 2.American Research Corporation of VirginiaRadfordUSA

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