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RESEARCH PAPERS

Eddy Current Flow Near Cracks in Thin Plates

[+] Author and Article Information
C. Y. Hui, A. Ruina

Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, N.Y. 14853

J. Appl. Mech 52(4), 841-846 (Dec 01, 1985) (6 pages) doi:10.1115/1.3169156 History: Received February 01, 1984; Online July 21, 2009

Abstract

The problem of magnetically induced eddy current flow in a thin cracked plate is posed and solved for a few special cases. The current density is singular at the tip of a nonconducting crack. The strength of this singularity, denoted M, is found by reducing the eddy current problem to a conduction problem and then using the mathematical methods of fracture mechanics. M is found for a small crack in a current field, a small crack in a round plate with spatially uniform magnetic field, and a half-cracked round plate with spacially uniform magnetic field.

Copyright © 1985 by ASME
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