Numerical evaluation of ECT impedance signal due to minute cracks

Journal Article · Sat Mar 01 00:00:00 EST 1997 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.582750· OSTI ID:462679

Fukutomi, Hiroyuki; Takagi, Toshiyuki; Tani, Junji ^[1]; Hashimoto, Mitsuo ^[2]; Shimone, Junri; Harada, Yutaka ^[3]

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1. Tohoku Univ., Sendai (Japan)
2. Polytechnic Univ., Sagamihara (Japan)
3. Nuclear Engineering Ltd., Nishi, Osaka (Japan)

This paper describes an experimental and analytical study on minute crack inspection with Eddy Current Testing (ECT). Measurement and simulation using a 3D FEM program are applied for the evaluation of the detecting signal with a minute crack in a test piece. Parameters such as mesh division, ICCG convergence criteria, etc. are evaluated to achieve high accuracy in numerical calculation. The simulation results agreed with experimental ones. ECT is used for in-service inspection of tubes in steam generators, heat exchangers and condensers in nuclear or conventional power plants as well as in chemical installations.

• OSTI ID: 462679
• Report Number(s): CONF-960725-; ISSN 0018-9464; TRN: 97:007385
• Journal Information: IEEE Transactions on Magnetics, Vol. 33, Issue 2Pt2; Conference: 1996 Summer meeting of the IEEE Power Engineering Society, Denver, CO (United States), 28 Jul - 1 Aug 1996; Other Information: PBD: Mar 1997
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
EDDY CURRENT TESTING
CRACKS
THREE-DIMENSIONAL CALCULATIONS
FINITE ELEMENT METHOD
IN-SERVICE INSPECTION
POWER PLANTS
CHEMICAL PLANTS
NUMERICAL ANALYSIS