1. Features of propagation of elastic waves in auxetics.
- Author
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Tuch, E. V. and Krivosheina, M. N.
- Subjects
- *
ELASTIC waves , *CRYSTAL symmetry , *ZINC crystals , *SINGLE crystals , *LONGITUDINAL waves , *FINITE element method , *AUXETIC materials , *ELASTIC wave propagation - Abstract
The features of the propagation of elastic longitudinal and rod waves in single crystal cylinders under shock loading against a rigid wall are shown. The finite element method in a three-dimensional formulation simulates the shock loading of cylindrical bodies with the same height for cases of different orientations of the single crystal symmetry axes relative to the cylinder symmetry axis. The shock loading of the cylinders against a rigid wall is modeled with the same initial velocity, which ensures elastic deformation of the cylinders. The materials of the cylinders are zinc single crystals characterized by auxeticity. It is shown that the values of the velocities of propagation of elastic waves in cylinders depend on the direction of propagation, the ratio of the height of the cylinder to the diameter, and also on the location of the ultrasonic wave receiver. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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