NDT.net - September 1998, Vol.3 No.9

Table of Contents ECNDT '98

Session: Aerospace

Characterization of Defects in Composite Material Using Rapidly Acquired Leaky Lamb Wave Dispersion Data

Yoseph Bar-Cohen*, Zensheu Chang
and
Ajit Mal
Mechanical & Aerospace Engineering Dept., University of California,
Los Angeles, CA, USA 90095, ajit@seas.ucla.edu
*Corresponding Author Contact:
Jet Propulsion Laboratory (JPL), Caltech, Pasadena, CA, USA 91109 ; yosi@jpl.nasa.gov ; http://ndeaa.jpl.nasa.gov

TABLE OF CONTENTS


Abstract

Introduction

Leaky Lamb Wave Phenomenon

Theory and Data Inversion

LLW Experimental Capability Enhancement

Flaw Characterization using LLW

Conclusions

Acknowledgement

References

  1. Y. Bar-Cohen and D. E. Chimenti, Review of Progress in Quantitative NDE, Vol. 3B, D. O. Thompson and D. E. Chimenti (Eds.), Plenum Press, New York and London (1984), pp. 1043-1049.
  2. Y. Bar-Cohen and R.L. Crane, Materials Evaluation, Vol. 40, No. 9 (1982), pp. 970-975.
  3. A. K. Mal and Y. Bar-Cohen, Proceedings of the Joint ASME and SE meeting, AMD-Vol. 90,A. K. Mal and T.C.T. Ting (Eds.), ASME, NY, (1988), pp. 1-16.
  4. A. H. Nayfeh and D. E. Chimenti, J. Applied Mechanics, Vol. 55 (1988) p. 863.
  5. V. Dayal and V.K. Kinra, J. Acoustic Society of America, Vol. 89, No. 4 (1991), pp. 1590-1598.
  6. Y. Bar-Cohen, A. K. Mal and S. -S. Lih, Materials Evaluation, Vol. 51, No. 11, (Nov. 1993)1285-1296.
  7. Y. Bar-Cohen, A. K. Mal and C. -C. Yin, Journal of Adhesion, Vol. 29, No. 1-4, (1989), pp.257-274.
  8. A. K. Mal and Y. Bar-Cohen, Proceedings of the Mechanics of Composites Review, Dayton, Ohio, (1991).
  9. A. K. Mal, S.-S. Lih and Y. Bar-Cohen, Review of Progress in Quantitative NDE, Vol. 12A, D. O. Thompson, and D. E. Chimenti (Eds.), Plenum Press, New York, (1993) pp. 1233-1240.

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