Application of Finite Element Eddy Current Analysis to Nondestructive Detection of Flaws in Metallic Structures

Authors

T. W. Nehl, Virginia Polytechnic Institute and State UniversityFollow
Nabeel Demerdash, Marquette UniversityFollow

Document Type

Article

Language

eng

Publication Date

9-1980

Publisher

Institute of Electrical and Electronic Engineers (IEEE)

Source Publication

IEEE Transactions on Magnetics

Source ISSN

0018-9464

Abstract

The finite element method was used in the development of a model for impedance calculations of test coils used in nondestructive testing (NDT). The procedure was applied in characterization of various rectangular slab materials. Also, applications to the characterization of discontinuities (flaws) of open channel shape in metallic slabs was included in the work. Coil impedances as affected by slab thicknesses were obtained for purposes of uniformity and quality control and assurance testing of metallic parts, were obtained. These results and modeling techniques are shown to enable one to maximize coil sensitivities to given tasks in NDT. Equipotential plots are used throughout for illustration purposes.

Comments

IEEE Transactions on Magnetics, Vol. 16, No. 5 (September 1980): 1080-1082. DOI.

N.A. Demerdash was affiliated with Virginia Polytechnic Institute and State University at the time of publication.

Recommended Citation

Nehl, T. W. and Demerdash, Nabeel, "Application of Finite Element Eddy Current Analysis to Nondestructive Detection of Flaws in Metallic Structures" (1980). Electrical and Computer Engineering Faculty Research and Publications. 460.
https://epublications.marquette.edu/electric_fac/460