Evaluation and minimization of experimental errors in elastic constants and internal friction obtained by the composite-bar method

Seishi Kudo, Masakuni Ozawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Using the composite-bar method, the fundamental frequency fsand internal friction Q-1of a sample were measured as a function of the fundamental frequency fqof the quartz vibrator by using quartz vibrators with different fundamental frequencies. The experimental values of fsand Q-1varied with fqand were maximum and minimum respectively at fq=fs. The fsand Q-1values at fq=fsare the most probable values, and they were determined by interpolation of the data. The errors were 0.05 to 0.10% (practically negligible) in fsand 20 to 300% in Q-1, when the difference between fqand the most probable fswas 10%.

Original languageEnglish
Pages (from-to)184-186
Number of pages3
JournalJapanese journal of applied physics
Volume28
Issue numberS2
DOIs
Publication statusPublished - 1989 Jan 1

Keywords

  • Composite-bar method
  • Elastic constants
  • Fundamental frequency
  • Internal friction

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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