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Development of an Eddy Current Inspection Technique for Sleeved Engine Disk Bolt Holes

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Review of Progress in Quantitative Nondestructive Evaluation

Part of the book series: Library of Congress Cataloging in Publication Data ((RPQN,volume 2A))

Abstract

Recent research programs have concentrated mainly on developing techniques to characterize surface breaking cracks and very little has been done towards characterizing subsurface flaws in conducting materials. Presented in this paper are the results of some initial theoretical work aimed at the development of a reliable eddy current technique to detect and characterize defects in engine disk bolt holes under a 0.05″ stainless steel sleeve. The change in impedance of an absolute eddy current coil with and without ferrite core, and the distribution of eddy currents around a second layer crack with and without a thin insulating film between the two conducting layers have been predicted numerically. The overall system development goals and methods to accomplish them are outlined briefly.

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References

  1. W. Sheppard, D. Mih and K. Tam, “Multisegment eddy current probe”, paper presented at the Review of Progress in Quantitative NDE, 8th AF/DARPA Conference, University of Colorado, Boulder, CO, August, 1981.

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  2. R. Palanisamy, “Finite element modeling of eddy current nondestructive testing procedures”, Ph.D. Dissertation, Colorado State University, 1980.

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  3. R. L. Stoll, “The analysis of eddy currents”, Clarendon Press, Oxford, 1974.

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Author information

Authors and Affiliations

  1. Ames Laboratory, USDOE, Iowa State University, Ames, IA, 50011, USA

    R. Palanisamy & K. M. Lakin

Authors
  1. R. Palanisamy
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  2. K. M. Lakin
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Editor information

Editors and Affiliations

  1. Ames Laboratory (USDOE), Iowa State University, Ames, Iowa, USA

    Donald O. Thompson

  2. Air Force Wright Aeronautical Laboratories Materials Laboratory, Wright-Patterson Air Force Base, Ohio, USA

    Dale E. Chimenti

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© 1983 Plenum Press, New York

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Palanisamy, R., Lakin, K.M. (1983). Development of an Eddy Current Inspection Technique for Sleeved Engine Disk Bolt Holes. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Library of Congress Cataloging in Publication Data, vol 2A. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3706-5_12

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  • DOI: https://doi.org/10.1007/978-1-4613-3706-5_12

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-3708-9

  • Online ISBN: 978-1-4613-3706-5

  • eBook Packages: Springer Book Archive

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