Quasi-3D Crack Size Estimation Using Eddy Current Testing Images on Austenite Stainless Steel Plates

Author

Endo, Hisashi ; Uchimoto, Tetsuya ; Takagi, Toshiyuki

Author_Institution

Inst. of Fluid Sci., Tohoku Univ., Sendai

fYear

0

fDate

0-0 0

Firstpage

420

Lastpage

420

Abstract

This paper proposes a crack sizing method in eddy current testing (ECT) for austenite stainless steel plates. The image and finite element analyses for the ECT response maps estimate size of surface breaking and crack depth, respectively. At first, template matching identifies surface breaking in fragments. Second, measuring the length of fragment gives a quasi-3D region for sizing crack depth. Third, the crack is reconstructed by iteration of fast finite element analysis. Finally, overlapping all evaluated cracks represents complicated-shape cracks. It is shown that size of stress corrosion cracking is efficiently estimated

Keywords

austenitic stainless steel; eddy current testing; finite element analysis; plates (structures); stress corrosion cracking; surface cracks; austenite stainless steel plates; crack depth sizing; eddy current testing images; finite element analyses; quasi-3D crack size estimation; stress corrosion cracking; surface breaking; template matching; Eddy current testing; Electrical capacitance tomography; Finite element methods; Image analysis; Image reconstruction; Length measurement; Size measurement; Steel; Surface cracks; Surface reconstruction;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1633210

Filename

1633210