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U.S. Department of Energy
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Development of three dimensional electromagnetic FEM code for steam generator inspection

Book ·
OSTI ID:86166
; ; ;  [1];  [2]
  1. Nuclear Fuel Industries, Ltd., Osaka (Japan)
  2. Japan Power Engineering and Inspection Corp., Chiba (Japan)

In Japan, all of steam generator (SG) tubings in Pressurized Water Reactor (PWR) plants have been inspected by the regulatory authorities at every outage, using eddy-current testing (ECT). Here, calculation and experimental results are presented for eddy-current NDE (nondestructive examination) problems with Inconel 600 plate specimens. A circular air-cored coil is scanned along the length of rectangular slots with inner and outer opening. The flaw impedance trajectory is computed by using a finite element scheme that evaluates directly the perturbation of the electromagnetic field due to the flaw. The agreement is within the range of the experimental error.

OSTI ID:
86166
Report Number(s):
CONF-9505104--; ISBN 0-87170-548-6
Country of Publication:
United States
Language:
English