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A Method to Determine the Debonding Zones in Multilayers Wood Materials

R. Grimberg, A. Savin, A. Lupu, C. Rotundu
National Institute of R&D for Technical Physics, 47 Mangeron Blvd., 6600, Iasi, ROMANIA
L. Iancu
National Institute for Wood, 7 Fabrica de glucoza St., Sector 2, Bucharest, ROMANIA

Contact

Introduction

Theory

Experimental set-up

Results

Conclusions

References

  1. L.W.Schmerr Jr.,Fundamentals of Ultrasonic Nondestructive Evaluation, Plenum Press, N.Y., 1998
  2. L.Landau, E.M.Lifshitz,Theory of Elasticity, Pergamon, N.Y., 1959
  3. F.Levent Degertekin, Butrus T. Khuri-Yakub, Single Mode Lamb Wave Excitation in Thin Plates by Hertzian Contacts, J.Appl.Phys. Lett., 69, 2, (1996), 146-148
  4. R.James, S.M.Woodley, C.M.Dyer, V.F.Humphrey, Sonic Bands, Bandgaps and Defect States in Layered Structures-Theory and Experiment, J.Acoust. Soc.Am., 97, 4, (1995), 2041-2047
  5. V.Bucur, An Ultrasonic Method for Measuring the Elastic Constants of Increment Cores Bored from Living Trees, Ultrasonics, 5, (1983), 116-126

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