On Microwave Dual Frequency Technique for Evaluation of Surface Cracks


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A method to estimate crack closure stress on the crack surface was introduced. The crack closure stress was estimated based on the compliance technique, while crack depth was measured by means of the microwave dual frequency technique. The effect of crack closure stress on detection and evaluation of a closed crack in a carbon steel by using the microwave dual frequency technique was discussed in details.



Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka




M. Saka et al., "On Microwave Dual Frequency Technique for Evaluation of Surface Cracks", Key Engineering Materials, Vols. 261-263, pp. 955-962, 2004

Online since:

April 2004




[1] W. Elber, Engineering Fracture Mechanics, 2 (1970) p.37.

[2] O. Buck and B.J. Skillings, Review of Progress in Quantitative Nondestructive Evaluation, New York (1982) p.349.

[3] R. Clark, W.D. Dover and L.J. Bond, NDT International, 20 (1987) p.269.

[4] K.K. So and A.N. Sinclair, Nondestructive Testing Communication, 3 (1987) p.67.

[5] M. Saka, E. Schneider and P. Hoeller, Research in Nondestructive Evaluation, 1 (1989) p.65.

[6] R.J. Hruby and L. Feinstein, The Review of Scientific Instruments, 41 (1970) p.679.

[7] B.A. Auld, Physics in Technology, 12 (1981) p.149.

[8] C.Y. Yeh and R. Zoughi, Materials Evaluation, 53 (1995) p.496.

[9] C. Huber, H. Abiri, S. Ganchev and R. Zoughi, IEEE T. Microwave Theory and Techniques, 45 (1997) p.477.

DOI: https://doi.org/10.1109/22.566626

[10] Y. Ju, M. Saka, D. Luo and H. Abé, 10th Asia-Pacific Conference on Non-Destructive Testing (CD-ROM), Brisbane (2001) Paper 996.

[11] M. Saka, Y. Ju, D. Luo and H. Abé, JSME Int. J. A, 45 (2002) p.573.

[12] W. Elber, ASTM STP, 486 (1971) p.230.

[13] M. Kikukawa, M. Jono, K. Tanaka and M. Takatani, J. Soc. Materials Science, Japan, 25 (1976) p.899 (in Japanese).