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A Study on the Guided Wave Mode Conversion Using Self-calibrating Technique

Cho, Younho
Department of Mechanical Engineering, Inje Univ., The Republic of Korea
Park, Jung-Chul
NDT Engineering Co., The Republic of Korea
Joseph L. Rose
Engineering Science and Mechanics Dept. Penn State University, USA
Derrick D. Hongerholt
BFGoodrich Aerospace, USA
Contact

ABSTRACT

1. INTRODUCTION

2. MODE CONVERSION AND SELF CALIBRATING TECHNIQUE

3. MEASUREMENT OF R/T USING THE SELF-CALIBRATING TECHNIQUE

4. RESULTS AND DISCUSSION

CONCLUSIONS

ACKNOWLEDGEMENTS

REFERENCES

  1. H. Lamb, "The Flexure of an Elastic Plate", Proceedings of London Mathematical Society, pp. 85-90, (1989)
  2. D. N. Alleyne and P. Cawley, "The interaction of Lamb waves with defects," IEEE Trans. Ultrasonic., Ferro. Freq. Cont., vol. 39, no. 3, pp. 381-397, (1992)
  3. J. L. Rose and J. J. Ditri, "Waves in solid media: A focus on ultrasound," Penn. State Univ., (1996)
  4. J. J. Ditri, J. L. Rose, and G. Chen, "Mode selection criteria for defect detection optimization using Lamb waves," Review of Progress in Quantitative Non-Destructive Evaluation, vol. 11, pp. 2109-2115, (1992)
  5. Y. Cho, D. D. Hongerholt and J. L. Rose, "The Lamb Wave Scattering Analysis for Reflector Characterization," The IEEE Transaction on Ultrasonics, Ferroelectrics and Frequency Control, Vol. 44, No. 1, pp. 44-52, January (1997)
  6. Y. Cho, J. L. Rose, D. D. Hongerholt, "Defect characterization and sizing potential with guided waves: theory," presented at Review of Progress in Quantitative Nondestructive Evaluation, Seattle, WA, (1995)
  7. B. R. Tittmann, B. H. Hosten, "A Self-Calibrating Technique for the Ultrasonic Discrimination of Solid-State Welds," Journal of NDE, Vol. 7, Nos. 3/4, (1988)
  8. J. D. Achenbach, I. N. Komsky, Y. C. Lee, and Y. C. Angel, "Self-Calibrating Ultrasonic Technique for Crack Depth Measurement," Journal of NDE, Vol. 11, No. 2, (1992)
  9. Cho, Younho, Park, Jung-Chul, "The Study on the NDE using the wedge for the excitation of Lamb wave in tubular structures," KSNT 1998 Spring Conference, pp. 48-56, (1998)
  10. Cho, Younho, Park, Jung-Chul, "Modal Characteristics of Lamb wave with respect to plate thickness variation," KSNT 1999 Fall Conference

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