DocumentCode
1226671
Title
Numerical Evaluation of the Depth of Branched-Off Cracks Using Eddy Current Testing Signals
Author
Cheng, Weiying ; Kanemoto, Shigeru ; Komura, Ichiro
Author_Institution
NDE Center, Japan Power Eng. & Inspection Corp., Yokohama
Volume
44
Issue
6
fYear
2008
fDate
6/1/2008 12:00:00 AM
Firstpage
1030
Lastpage
1033
Abstract
Numerical simulation shows that eddy current testing (ECT) signal of a branched-off crack is much larger than that of a same deep, single crack. To avoid the overestimation of the depth of a branched-off crack, a depth sizing index, which is designed to have maximum sensitivity to crack depth, is constructed based on an optimization approach, and the depths of branched-off cracks are estimated using this index. This depth sizing approach is numerically and experimentally validated.
Keywords
cracks; eddy current testing; optimisation; branched-off cracks; depth-sizing index; eddy current testing signals; optimization; Cracks; depth sizing; eddy current testing; optimization methods;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2007.914881
Filename
4526823
Link To Document