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Features of the reflection of an acoustic beam from a surface with nonuniform boundary conditions. II. Experiments

  • Acoustic Methods
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Abstract

A method for testing the quality of joints of materials proposed earlier and based on the revealed patterns of the reflection of elastic waves from modeled nonuniform boundaries of the free—rigid, free—slip, and slip—rigid types is experimentally verified. The technique and setup for studying the reflection of longitudinal, head, and Rayleigh waves is developed. The results of the investigations are in good qualitative agreement with the calculation data. It is shown that, as a result of interference of waves reflected from an nonuniform interface, transmission-reception angles exist at which the amplitude of a reference signal during scanning changes by tens of decibels or more. The fundamental possibility of using this method for evaluating the quality of cohesion between materials, testing the quality of acoustic contacts, controlling the directivity characteristic of elastic waves, etc., is confirmed.

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References

  1. Baev, A.R. and Asadchaya, M.V., Features of Reflection of an Acoustic Beam from a Surface with Nonuniform Boundary conditions. I. Theoretical Analysis, Defektoskopiya, 2010, no. 8, pp. 3–17 [Russ. J. Nondestr. Test. (Engl. Transl.), 2010, vol. 46, no. 8, pp. 547–558].

  2. Baev, A.R., Imboden, M., and Asadchaya, M.V., Simulation of Reflection of Ultrasonic Waves from an Interface with Mixed Boundary Conditions, Sbornik tezisov dokladov 3-i mezhdunarodnoi nauchnoi konferentsii “Komp’yuternye metody i obratnye zadachi v nerazrushayushchem kontrole i diagnostike” (Abstracts of Papers of the Third Int. Conf. “Computer Methods and Inverse Problems in Nondestructive Testing and Diagnostics), Moscow, 2002.

  3. Skuchik, E., Osnovy akustiki. V 2 t., (Fundamentals of Acoustics), Moscow: Mir, 1976, vol. 1.

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Authors and Affiliations

  1. Institute of Applied Physics, Belarusian National Academy of Sciences, Minsk, 220072, Belarus

    A. R. Baev, A. L. Maiorov, M. V. Asadchaya & G. E. Konovalov

Authors
  1. A. R. Baev
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  2. A. L. Maiorov
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  3. M. V. Asadchaya
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  4. G. E. Konovalov
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Corresponding author

Correspondence to A. R. Baev.

Additional information

Original Russian Text © A.R. Baev, A.L. Maiorov, M.V. Asadchaya, G.E. Konovalov, 2010, published in Defektoskopiya, 2010, Vol. 46, No. 8, pp. 18–27.

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Baev, A.R., Maiorov, A.L., Asadchaya, M.V. et al. Features of the reflection of an acoustic beam from a surface with nonuniform boundary conditions. II. Experiments. Russ J Nondestruct Test 46, 559–566 (2010). https://doi.org/10.1134/S1061830910080024

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  • DOI: https://doi.org/10.1134/S1061830910080024

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