Ultrasonic Techniques to Produce Damage Profiles through the Thickness of a Sample

  • William J. Murri
  • Kirk W. Bailey
  • Bradley W. Sermon
  • Tammy J. Todaro
Conference paper
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series (RPQN, volume 6 A)

Abstract

There are two basic approaches to quantitative nondestructive evaluation (NDE); the first is concerned with images and the second is concerned with material properties. The objective of the first approach is to produce an exact image of a defect or anomaly in a given sample. The defect may arise in the manufacturing process or it may occur later in the service life of the sample (i. e. damage produced by impact or mishandling). Ideally, the NDE method should produce a clear image and be capable of locating the defect in lateral extent as well as depth which would allow an observer to determine the damaged volume. In the second approach, the objective is not principally to produce an image, but rather to relate some acoustic parameter with a material property parameter. As a bonus, some of the NDE techniques in this second category also produce an image of the damaged or defect area.

Keywords

Epoxy 

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References

  1. 1.
    Y. Bar-Cohen and R. L. Crane, “Acoustic-Backscattering Imaging Of Subcritical Flaws In Composites”, Mat. Eval. 40, 970, 1982.Google Scholar
  2. 2.
    W. J. Murri, B. W. Sermon, and L. H. Pearson, “Ultrasonic Backscatter Studies On Impact Damage In Graphite/Epoxy Composite Laminate Materials”, Proceedings Of 15t Symposium On NDE, Southwest Research Institute, San Antonio, Texas, 1985, p. 219.Google Scholar
  3. 3.
    E. D. Blodgett, J. G. Miller, and S. M. Freeman, “Correlation Of Ultrasonic Polar Backscatter With The Deply Technique For Assessment Of Damage In Composite Laminates”, in Review Of Progress In Quantitative Nondestructive Evaluation Vol 5B, (ed. by D. O. Thompson and D. E. Chimenti ), Plenum Press, New York, 1986, p. 1227.Google Scholar

Copyright information

© Springer Science+Business Media New York 1987

Authors and Affiliations

  • William J. Murri
    • 1
  • Kirk W. Bailey
    • 1
  • Bradley W. Sermon
    • 1
  • Tammy J. Todaro
    • 1
  1. 1.Advanced Methods GroupHercules Aerospace Company Bacchus WorksMagnaUSA

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