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P-wave ray velocities and the inverse acoustic problem for anisotropic media
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SYSNO ASEP 0461462 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title P-wave ray velocities and the inverse acoustic problem for anisotropic media Author(s) Zel, I. Yu. (RU)
Ivankina, T. I. (RU)
Levin, D.M. (RU)
Lokajíček, Tomáš (GLU-S) RID, SAI, ORCIDSource Title Crystallography Reports. - : Pleiades Publishing - ISSN 1063-7745
Roč. 61, č. 4 (2016), s. 633-639Number of pages 7 s. Publication form Print - P Language eng - English Country RU - Russian Federation Keywords anisotropic media ; P-Wawe velocities ; elasticity Subject RIV DB - Geology ; Mineralogy Institutional support GLU-S - RVO:67985831 UT WOS 000381223800016 EID SCOPUS 84979993298 DOI 10.1134/S106377451604026X Annotation The specific features of the calculation of ray velocities of quasi-longitudinal waves in anisotropic media have been considered. A technique for calculating elastic constants using P-wave ray velocities measured in an ultrasonic experiment on spherical samples is presented. It is shown by an example of tabular data that elastic constants С11, С22, and С33 and combinations of constants (С12 + 2С 66), (С13 + 2С55), (С23 + 2С44), (С14 + 2С56), (С25 + 2С46), and (С36 + 2С 45) can be calculated most accurately for the general case of anisotropic media with elastic properties of arbitrary symmetry. Since the determining system of equations is illconditioned, the values of elastic constants entering these combinations depend on the choosed initial approximation. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2017
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