Simulation Study on the Effect of Crack Width on ECT Signal

Eddy current testing (ECT) is a widely used non-destructive inspection technique on pipeline. To develop a precise inspection method, the variations of the amplitude and phase of ECT signal should be investigated taking into account crack width. This paper describes 2D axial symmetric numerical anal...

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Bibliographic Details
Published inProcedia engineering Vol. 15; pp. 5227 - 5231
Main Authors Kai, Song, Benli, Wan, Lipan, Zhang, Junjiang, Li
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2011
Subjects
defect width
eddy current testing (ECT)
finite element analysis (FEA)
phase
phase
eddy current testing (ECT)
finite element analysis (FEA)
defect width
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Summary:Eddy current testing (ECT) is a widely used non-destructive inspection technique on pipeline. To develop a precise inspection method, the variations of the amplitude and phase of ECT signal should be investigated taking into account crack width. This paper describes 2D axial symmetric numerical analysis of ECT. The stimulation results show when the width of rectangular slot is constant, signal phase has obvious rules related to slot depth. But The ECT signals are seriously influenced by the slot width under the conditions of fixed slot depth. The effect of crack width and depth of pipeline is clarified. Understanding of respective signal characteristics would be useful for more reliable inspection.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2011.08.969