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Some Inversion Problems in Nondestructive Evaluation

  • Kim Murphy
  • Harold A. Sabbagh
  • Jeff C. Treece
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Abstract

Nondestructive evaluation (NDE) is to materials and structures what CAT scanning is to the human body---an attempt to look inside without opening the body. It is in nature an inversion problem. While such problems present a formidable mathematical challenge, sophisticated new models and software are beginning to yield useful results. In this paper we discuss the solution of several inversion problems using the eddy-current volume-integral code, VIC-3D1. These problems, the reconstruction of flaws in steam-generator tubing, the determination of metallic plate thicknesses, and the reconstruction of conductivity profiles versus depth in metallic materials, are typical of the application of eddy-current NDE to process control and in-service inspection.

Keywords

Nondestructive Evaluation Inversion Problem Conductivity Profile Flaw Reconstruction Triangular Notch 
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

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    K. Murphy, H. A. Sabbagh, and J. C. Treece, in Review of Progress in QNDE, Vol. 13, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1994), p. 927.Google Scholar
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Copyright information

© Plenum Press, New York 1995

Authors and Affiliations

  • Kim Murphy
    • 1
  • Harold A. Sabbagh
    • 1
  • Jeff C. Treece
    • 1
  1. 1.Sabbagh Associates, Inc.BloomingtonUSA

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