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- Title
Determination of the Elastic Properties of a Solid Sphere Based on the Results of Acoustic Beam Scattering.
- Authors
Kotelnikova, L. M.; Nikolaev, D. A.; Tsysar, S. A.; Sapozhnikov, O. A.
- Abstract
When using elastic spherical scatterers in acoustic problems, it is necessary to know their main elastic parameters that characterize the internal resonances. In this study, it has been shown that the velocities of longitudinal and transverse waves in a solid sphere can be determined from the scattering characteristics of an ultrasound beam. Millimeter-sized steel, glass, and nylon spheres that were immersed in water were considered as scatterers. In experiments an acoustic field was created by a flat piezoelectric source operating in the megahertz frequency range in a pulsed mode. By comparing the experimental data and numerical calculations for the scattered-field amplitude, the velocities of elastic waves in the materials of spheres were determined and their absorption coefficients were estimated.
- Subjects
SOUND wave scattering; ELASTIC solids; ELASTICITY; ELASTIC waves; BESSEL beams; SPHERES
- Publication
Acoustical Physics, 2021, Vol 67, Issue 4, p360
- ISSN
1063-7710
- Publication type
Article
- DOI
10.1134/S1063771021040072