Referenced Items are not available for this document.
Eddy current testing (ECT) is one of the nondestructive inspection techniques to detect cracks and eddy current analysis is important for ECT. However, it is difficult to model a natural crack in finite element method (FEM), because of the narrow gap and the complex shape. In this paper, a finite element model for the natural crack is proposed. The conductivity for the finite element model is expressed by a tensor. In the proposed finite element, the change in crack shape and contact condition are simulated by changing the coefficients of the conductivity tensor. The proposed model is applied to a conductor plate model with a crack and a coil. The computation results are compared with the computation results of an artificial crack model. The validity of the proposed method is shown by the computation results
Published in:
Magnetics, IEEE Transactions on
(Volume:37
,
Issue:
5
)
Date of Publication: Sep 2001
- Page(s):
- 3125 - 3128
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 7071664
- Digital Object Identifier :
- 10.1109/20.952558
- Date of Current Version :
- 07 August 2002
- Issue Date :
- Sep 2001
- Sponsored by :
- IEEE Magnetics Society
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