Effect of Surface Layer Damage on Acoustic Anisotropy

Relations for the principal values of the damage tensor based on data on the speeds of longitudinal and transverse waves are proposed. The relationship of acoustic anisotropy with the principal values of the damage tensor are established. The distributions of local speeds and damage along the thickn...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2018-11, Vol.59 (6), p.1136-1144
Main Authors: Semenov, A. S., Polyanskii, V. A., Shtukin, L. V., Tretyakov, D. A.
Format: Article
Language:English
Subjects:
Anisotropy
Applications of Mathematics
Classical and Continuum Physics
Classical Mechanics
Damage localization
Fluid- and Aerodynamics
Mathematical analysis
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Physics
Physics and Astronomy
Surface layers
Tensors
Transverse waves
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Summary:Relations for the principal values of the damage tensor based on data on the speeds of longitudinal and transverse waves are proposed. The relationship of acoustic anisotropy with the principal values of the damage tensor are established. The distributions of local speeds and damage along the thickness of the specimen are studied. It is shown that damage is localized in a narrow surface layer, with local damage maxima far exceeding the average damage value.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894418060202