Characterization of Adhesive Bonding Using Leaky Lamb Waves

  • Yoseph Bar-Cohen
  • Ajit K. Mal
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


The performance of adhesive bonds in primary structures strongly depends on the quality of adhesion. Many NDE methods are presently used to detect unbonded areas; however, these methods cannot be used to determine bond properties. In standard ultrasonic techniques, the velocity of bulk wave propagation through the specimen is measured by time-offlight. Unfortunately, the waves reflected from the bonded region cannot be easily identified or analyzed to determine the properties of the adhesive layer.


Phase Velocity Dispersion Curve Adhesive Layer Adhesive Bond Simplex Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Y. Bar-Cohen, and A. K. Mal, Ultrasonic NDE of Adhesion and Cohesion of Bonded Joints, to be published in J. of Adhesion (1989).Google Scholar
  2. 2.
    S. Rokhlin, J. Applied Physics, Vol. 52, (1981), pp 2847–2851.CrossRefGoogle Scholar
  3. 3.
    A. Pilarski, J. Applied Physics, Vol. 63, (1988), pp 300–307.CrossRefGoogle Scholar
  4. 4.
    F. Leomy, M. de Billy, and G. Quentin, Dispersive Ultrasonic Waves in Adhesive Bonds, Review of Progress in Quantitative NDE, Vol. 8A, D. O. Thompson and D. E. Chimenti (Eds.), Plenum Press, New York, (1989). pp 1409–1416.Google Scholar
  5. 5.
    P. B. Nagy and L. Adler, Adhesive Joint Characterization by Leaky Guided Interface Waves, ibid.Google Scholar
  6. 6.
    K. Aki and P. G. Richards, Quantitative Seismology, Theory and Methods, Freeman, San Francisco (1980).Google Scholar
  7. 7.
    A. K. Mal, Guided Waves in Layered Solids with Interface Zones, Int. J. Engng. Sci., Vol. 16 (1988).Google Scholar
  8. 8.
    Y. Bar-Cohen, A. K. Mal, and P. C. Xu, Ultrasonic NDE of the Cohesive and Adhesive Properties of Bonded Joints Using Leaky Lamb Waves, McDonnell Douglas Paper No. 8055 (1989).Google Scholar
  9. 9.
    M. R. Karim, A. K. Mal, and Y. Bar-Cohen, Inversion of Leaky Lamb Wave Data by Simplex Algorithm, submitted for publication in the J. Acoustical Society of America.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Yoseph Bar-Cohen
    • 1
  • Ajit K. Mal
    • 2
  1. 1.Douglas Aircraft CompanyMcDonnell Douglas CorporationLong BeachUSA
  2. 2.Mechanical, Aerospace, and Nuclear EngineeringUniversity of California, Los AngelesLos AngelesUSA

Personalised recommendations