Radiation impedance of resonant ultrasound spectroscopy modes in fused silica

Journal of the Acoustical Society of America

Volumn 103, Issue 5 I, 1998, Pages 2385-2394

  Zhang, Hong ^a   Sorbello, R S ^a   Hucho, Carsten ^a   Herro, Joseph ^a   Feller, Jeffrey R ^a   Beck, D E ^a   Levy, Moises ^a   Isaak, D ^b   Carnes, J D ^b   Anderson, O ^b  

^a UNIVERSITY OF WISCONSIN MILWAUKEE   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIR; ARGON; ELASTIC MODULI; FUSED SILICA; HELIUM; LATTICE VIBRATIONS; MATHEMATICAL MODELS; NATURAL FREQUENCIES; SPECTROSCOPY; TORSIONAL STRESS; ULTRASONIC APPLICATIONS; ULTRASONIC MEASUREMENT;

MOLECULAR MASS; PRESSURE DEPENDENCE; RADIATION RESISTANCE; RESONANT ULTRASOUND SPECTROSCOPY MODES;

ACOUSTIC IMPEDANCE;

ARTICLE; CALCULATION; MATHEMATICAL ANALYSIS; MATHEMATICAL MODEL; PRIORITY JOURNAL; RADIATION; SPECTROSCOPY; THEORY; ULTRASOUND;

EID: 0032078946     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.422757     Document Type: Article

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27. The trigonometric function forms are used for the piston displacements in order to clearly demonstrate the consequences of the symmetries involved. These trigonometric functions are the leading terms of a series expansion of the exact solutions of the motion of the individual surfaces. However, it is felt that in view of the nature of the approximations used, the summation of the entire series is not warranted since the corrections produced by the absence of the summation would be comparable to those incurred by assuming a baffled solution.
28. In an accurate calculation of Q, one would use the actual displacement field at each point within the sample to compute the total energy stored. Our more approximate approach avoids the necessity of dealing with the precise details of the displacement field inside the sample.