Audiofrequency Compliances of Prestressed Quartz, Fused Silica, and Aluminum

Autor:	Martin Greenspan, Carl E. Tschiegg
Rok vydání:	1964
Předmět:	Materials science Acoustics and Ultrasonics chemistry.chemical_element Biasing Piezoelectricity Shear (sheet metal) Stress (mechanics) Arts and Humanities (miscellaneous) chemistry Aluminium Composite material Anisotropy Quartz Order of magnitude
Zdroj:	The Journal of the Acoustical Society of America. 36:450-457
ISSN:	0001-4966
DOI:	10.1121/1.1918977
Popis:	The anomalies in the audiofrequency compliances reported by Fitzgerald [J. Acoust. Soc. Am. 32, 1270 (1960)] were searched for in vain. In particular, the measured shear compliances were independent of frequency and prestress within the experimental error of about 4% over a range of these variables within which Fitzgerald reported a variation of one to two orders of magnitude. The present technique involves a vibrating duplex reed; the biasing steady stress is of either piezoelectric or thermal origin. An extension of the common theory of the “bimetallic strip” to anisotropic materials is presented.
Databáze:	OpenAIRE
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