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Modeling of reflected ultrasonic fields in composed samples
- Authors: Glushkov E.V.1, Glushkova N.V.1, Tatarkin A.A.1, Ermolenko O.A.1
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Affiliations:
- Kuban State University
- Issue: No 11 (2024)
- Pages: 3-14
- Section: Acoustic methods
- URL: https://permmedjournal.ru/0130-3082/article/view/649292
- DOI: https://doi.org/10.31857/S0130308224110014
- ID: 649292
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Abstract
Ultrasonic nondestructive testing involves the study of propagation, reflection and refraction patterns of elastic waves excited by contact or non-contact piezoelectric transducers in the inspected object. The finite element modeling usually requires high computational costs and additional postprocessing to select individual waves from the total solution. When probing joints of homogeneous materials, such as turbine blades made of heat-resistant monocrystalline alloys, the joint boundary is low-contrast, and the reflected signals are relatively weak. This causes additional difficulties for their separation from the total wave field and correct interpretation of the information they bring. To solve this problem, explicit asymptotic representations for reflected and transmitted waves in a two-layer elastic half-space with a surface source are proposed in the present work, which allow fast parametric analysis. They can be used to analyze ultrasonic probing data, for example, to estimate the state of the junction zone or to determine the mutual orientation of the crystals’ principal axes.
About the authors
E. V. Glushkov
Kuban State University
Author for correspondence.
Email: evg@math.kubsu.ru
Institute for Mathematics, Mechanics and Informatics
Russian Federation, 350040 Krasnodar, Stavropolskaya str., 149N. V. Glushkova
Kuban State University
Email: nvg@math.kubsu.ru
Institute for Mathematics, Mechanics and Informatics
Russian Federation, 350040 Krasnodar, Stavropolskaya str., 149A. A. Tatarkin
Kuban State University
Email: tiamatory@gmail.com
Institute for Mathematics, Mechanics and Informatics
Russian Federation, 350040 Krasnodar, Stavropolskaya str., 149O. A. Ermolenko
Kuban State University
Email: o.ermolenko.a@gmail.com
Institute for Mathematics, Mechanics and Informatics
Russian Federation, 350040 Krasnodar, Stavropolskaya str., 149References
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