Inversion of Voltage Data to Predict Crack Shape

  • Maureen McIver
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


Surface-breaking cracks in metal sheets may be detected by injecting alternating current into the sheet and observing the resulting nonuniformity in the surface electromagnetic field.


Metal Sheet Stream Function Potential Distribution Fredholm Integral Equation Physical Plane 
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    Michael, D. H., Waechter, R. T. & Collins, R. 1982, “The measurement of surface cracks in metals by using a.c. electric fields”, Proc. Roy. Soc. Lond. A. Vol. 381, pp. 139–157.CrossRefGoogle Scholar
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    Lewis, A. M., Michael, D. H., Lugg, M. & Collins, R., 1988, “Thin skin electromagnetic fields around surface-breaking cracks in metals”, J. Appl. Physics, Vol. 64, pp. 3777–3784.CrossRefGoogle Scholar
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    McIver, M., 1989, “Characterization of surface-breaking cracks in metal sheets using a.c. electric fields”, Proc. Roy. Soc. Lond. A. Vol. 421, pp. 179–194.CrossRefMATHGoogle Scholar
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    Babolian, E. & Delves, L. M., 1979, “An augmented Galerkin method for first kind Fredholm equations”, J. Inst. Maths Applies. Vol. 24, pp. 157–174.MathSciNetCrossRefMATHGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Maureen McIver
    • 1
  1. 1.School of Mathematical SciencesUniversity of BathBathUK

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