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The Internal-Friction Tensor Q-1iJ

Published

Author(s)

Paul R. Heyliger, H M. Ledbetter, Sudook A. Kim

Abstract

oustic-resonance spectroscopy enables obtaining the complete elastic-stiffness tensor Cy in one measurement of the macroscopic-vibration frequencies of a regular-shape solid. Because the total elastic stiffness Cy contains both real and imaginary parts, Cy = Cy (1 + i!-1y), in principle one can simultaneously determine the complete internal-friction tensor Q-1y. Here, we give the necessary mathematical analysis together with applications to monocrystal magnesium oxide and to monocrystal silicon with two dislocation densities. Briefly, we describe our results in terms of the Koehler-Granato-Lucke vibrating-string modelof dislocation damping.
Citation
L. Magalas, (ED.) Mechanical Spectroscopy

Keywords

acoustic-resonance spectroscopy, elastic coefficients, internal friction, magnesium oxide, natural vibrations, silicon, ultrasonics, vibrating-string model

Citation

Heyliger, P. , Ledbetter, H. and Kim, S. (2021), The Internal-Friction Tensor Q-1<sub>iJ</sub>, L. Magalas, (ED.) Mechanical Spectroscopy (Accessed July 25, 2024)

Issues

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Created October 12, 2021