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Advanced Computing in Industrial Mathematics pp 135–146Cite as

Computer Aided Modeling of Ultrasonic Surface  Waves Propagation in Materials with Gradient of Properties

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Part of the book series: Studies in Computational Intelligence ((SCI,volume 681))

Abstract

The present work deals with modeling of generating, propagation and receiving of the Rayleigh impulse in material with gradient of properties. The spectrum of an ultrasonic signal, having passed through a material, is determined by the spectrum of the exciting electrical signal, frequency characteristics of the transmitting and receiving transducers and by material characteristics. The dispersion of the Rayleigh wave is obtained as a result of the simulation done by spectral decomposition of impulse and processing components considering wave penetration and wave velocity changes caused by gradient of mechanical characteristics. Simulated ultrasonic waveforms allow evaluation of the time delay effect induced by stress gradient. Application of ultrasonic wave for stress analyses is possible on the basis of spectral analysis and phase comparisons of ultrasonic impulse.

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Acknowledgements

The research is partly supported by the project N 147/2015 with Sofia University “St. Kliment Ohridski”.

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Authors and Affiliations

  1. Faculty of Mathematics and Informatics, Sofia Univeristy “St.Kliment Ohridski”, Sofia, Bulgaria

    Todor Partalin

  2. Faculty of Physics, Sofia University “St.Kliment Ohridski”, Sofia, Bulgaria

    Yonka Ivanova

  3. Institute of Mechanics, Bulgarian Academy of Sciences, Sofia, Bulgaria

    Yonka Ivanova

Authors
  1. Todor Partalin
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  2. Yonka Ivanova
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Corresponding author

Correspondence to Yonka Ivanova .

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Editors and Affiliations

  1. Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, Sofia, Bulgaria

    Krassimir Georgiev

  2. Faculty of Applied Mathematics and Informatics, Technical University of Sofia, Sofia, Bulgaria

    Michail Todorov

  3. Institute of Information and Communication Technologies, Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, Sofia, Bulgaria

    Ivan Georgiev

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Partalin, T., Ivanova, Y. (2017). Computer Aided Modeling of Ultrasonic Surface  Waves Propagation in Materials with Gradient of Properties. In: Georgiev, K., Todorov, M., Georgiev, I. (eds) Advanced Computing in Industrial Mathematics. Studies in Computational Intelligence, vol 681. Springer, Cham. https://doi.org/10.1007/978-3-319-49544-6_12

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  • DOI: https://doi.org/10.1007/978-3-319-49544-6_12

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-49543-9

  • Online ISBN: 978-3-319-49544-6

  • eBook Packages: EngineeringEngineering (R0)

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