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Depth Measurement of Surface-Breaking Cracks Using Point-Source/Point-Receiver Acoustic Transducer

Published online by Cambridge University Press:  05 May 2011

Yung-Chun Lee  and
Shi Hoa Kuo
Yung-Chun Lee*
Affiliation:
Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
Shi Hoa Kuo*
Affiliation:
Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
*
*Professor
**Graduate student
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Abstract

A newly developed point-source/point-receiver (PS/PR) acoustic transducer is used for measuring the depth of surface-breaking cracks. The transducer consists of two miniature conical PZT elements which form a transmitter/receiver pair for generating and detecting surface waves. A tone-burst measurement system operates the PS/PR transducer at a fixed frequency. When a surface-breaking crack is present in between the transmitter and receiver, the change in time-of-flight of surface wave propagation caused by the crack is measured and used to estimate the crack depth. To verify the feasibility of this method, machined slots on a carbon steel sample are tested by the PS/PR transducer for crack depth determination. Good experimental results are obtained. Future applications and improvements on the PS/PR transducer system are addressed.

Keywords

Point-source/point-receiverAcoustic transducerSurface waveCrack depth measurementSurface-breaking crack.
Type
Articles
Information
Journal of Mechanics , Volume 19 , Issue 4 , December 2003 , pp. 425 - 429
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2003

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References

REFERENCES

1.Yu, P. M. and Wikswo, J. P. Jr, “Techniques for Depth-Selective, Low-Frequency Eddy Current Analysis for SQUID-Based Nondestructive Testing,” J. Nondestr. Eval, 14(3), pp. 149–167 (1995).Google Scholar
2.Lebrun, B., Jayet, Y. and Baboux, J. C., “Pulsed Eddy Current Application to the Detection of Deep Cracks,” Mater. Eval, 53(11), pp. 1296–1300 (1995).Google Scholar
3.Chajarieh, R., Saka, M., Sugawara, T., Abe, H., Komura, I. and Sakamoto, H., “NDE of Multiple Cracks on the Surface of Materials by Means of the Potential Drop Technique,” NDT&E International, 27(3), pp. 143–150 (1994).CrossRefGoogle Scholar
4.Ikeda, K., Yoshimi, M. and Miki, C., “Electrical Potential Drop Method for Evaluating Crack Depth,” Int. J. Fracture, 47(1), pp. 25–38 (1991).CrossRefGoogle Scholar
5.Krautkramer, J. and Krautkramer, H., Ultrasonic Testing of Materials, 4th ed., Berlin, Springer-Verlag (1990).CrossRefGoogle Scholar
6.Mendelsohn, D. A., Achenbach, J. D. and Keer, L. M., “Scattering of Elastic Waves by a Surface-Breaking Crack,” Wave Motion, 2(3), pp. 277–292 (1980).CrossRefGoogle Scholar
7.Angle, Y. C. and Achenbach, J. D., “Reflection and Transmission of Obliquely Incident Rayleigh Waves by a Surface-Breaking Crack,” J. Acoust. Soc. Am., 75, pp. 313–319 (1984).CrossRefGoogle Scholar
8.Achenbach, J. D., Komsky, I. N., Lee, Y. C. and Angel, Y. C., “Self-Calibrating Ultrasonic Technique for Crack Depth Measurement,” J. Nondestr. Eval., 11(2), pp. 103–108 (1992).CrossRefGoogle Scholar
9.Scala, C. M. and Bowles, S. J., “Laser Ultrasonics for Surface-Crack Depth Measurement Using Transmitted Near-Field Rayleigh Waves,” Review of Progress in QNDE, 19A, Thompson, D. O. and Chimenti, D. E., ed., New York, American Institute of Physics, pp. 327–334 (2000).Google Scholar
10.Hudgell, R. J., Morgan, L. L. and Lumb, R. F., “Non-destructive Measurement of the Depth of Surface-Breaking Cracks Using Ultrasonic Rayleigh Waves,” Br J. Non-destructive Testing, 16(5), pp. 144–149 (1974).Google Scholar
11.Lidington, B. H. and Silk, M. G., “Crack Depth Measurements Using a Single Surface Wave Probe,” Br J. Non-destructive Testing, 17(6), pp. 165–167 (1975).Google Scholar
12.Lloyd, E. A., “An Ultrasonic Short-Pulse Shear-Wave Method for Measuring the Depth of Surface-Breaking Cracks,” Br J. Non-destructive Testing, 17(6), pp. 172–175 (1975).Google Scholar
13.Doyle, P. A. and Scala, C. M., “Crack Depth Measurement by Ultrasonics—A Review,” Ultrasonics, 16(4), pp. 164–170 (1978).CrossRefGoogle Scholar
14.Silk, M. G., “The Transfer of Ultrasonic Energy in the Diffraction Technique for Crack Sizing,” Ultrasonics, 17, pp. 113–121 (1979).CrossRefGoogle Scholar
15.Ogilvy, J. A. and Temple, J. A. G., “Diffraction of Elastic Waves by Cracks—Application to Time-of-Flight Inspection,” Ultrasonics, 21, pp. 259–269 (1983).CrossRefGoogle Scholar
16.Shan, Q. and Dewhurst, R. J., “Surface-Breaking Fatigue Crack Detection Using Laser Ultrasound,” Appl. Phys. Lett., 62(21), pp. 2649–2651 (1993).CrossRefGoogle Scholar
17.Sansalone, M., Lin, J.-M. and Streett, W. B., “Determining the Depth of Surface-Opening Cracks Using Impact-Generated Stress Waves and Time-of-Flight Techniques,” ACI Materials Journal, 95(2), pp. 168–177 (1998).Google Scholar
18.Lin, Y and Su, W.-C., “Use of Stress Waves for Determining the Depth of Surface-Opening Cracks in Concrete Structures,” Mater. J. Am. Concr. Inst., 93(5), pp. 494–505 (1996).Google Scholar
19.Kuo, M. K., Lin, T. R., Liu, P. L. and Wu, T. T., “Locating the Crack Tip of a Surface-Breaking Crack, Part I, Line Crack,” Ultrasonics, 36, pp. 803–811 (1998).CrossRefGoogle Scholar
20.Knauss, D., Bennink, D. D., Ahzi, T., Briggs, A. G. D. and Martin, I. W., “Depth Measurement of Short Cracks with an Acoustic Microscope,” Journal of Material Science, 28, pp. 4910–4917 (1993).CrossRefGoogle Scholar
21.Silk, M. G. and Lidington, B. H., “Defect Sizing Using an Ultrasonic Tim Delay Approach,” Br J. Non-destructive Testing, 17(2), pp. 33–36 (1975).Google Scholar
22.Lee, Y. C. and Kuo, S. H., “A New Point-Source/Point-Receiver Acoustic Transducer for Surface Wave Measurement,” Sensors and Actuators, A94(1), pp. 129–135 (2001).CrossRefGoogle Scholar
23.Lee, Y. C. and Kuo, S. H., “Miniature Conical Transducer Realized by Excimer Laser Micro-Machining Technique,” Sensors and Actuators, A93(1), pp. 57–62 (2001).CrossRefGoogle Scholar