Regularization method for identification of crack shape for nondestructive evaluation

Author

Tsuchida, Yuji ; Enokizono, Masato

Author_Institution

Dept. of Electr. & Electron. Eng., Oita Univ., Japan

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

2016

Lastpage

2019

Abstract

This paper presents an identification method of crack shapes on eddy-current testing. In order to use the impulse excitation, numerical analysis is performed by the boundary element method with Laplace transform. The shapes of cracks are identified directly from the solutions of the integral equation of boundary element method. The proposal method by the singular value decomposition and fuzzy regularization method are applied into the shape identifications of various crack widths and heights to examine our proposed method.

Keywords

Laplace transforms; boundary-elements methods; cracks; eddy current testing; fuzzy reasoning; identification; singular value decomposition; Laplace transform; boundary element method; crack shape identification; eddy-current testing; fuzzy inference; fuzzy regularization method; impulse excitation; integral equation; nondestructive evaluation; numerical analysis; singular value decomposition; Boundary element methods; Integral equations; Iterative methods; Laplace equations; Magnetic flux; Magnetic flux density; Magnetic sensors; Optimization methods; Shape; Singular value decomposition; Eddy-current testing; Laplace transform; fuzzy inference; singular value decomposition;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846269

Filename

1431023