A method for measuring the dependence of internal friction on strain

Yinglei Huang, Peter R. Saulson

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A new method for investigating possible increases of internal friction when a sample is subjected to a substantial constant strain is discussed here. A special beam oscillator was designed in which the orientation of the apparatus determines whether the gravitational torque will apply either a large constant strain or a negligible one. The method was applied to test the strain dependence of the internal friction of a steel flexure 2.0 cm in length and 0.5 mm in thickness. When bent through an angle of 14.5°, it exhibited an 18% increase in internal friction over its unstrained value.

Original languageEnglish (US)
Pages (from-to)2102-2106
Number of pages5
JournalReview of Scientific Instruments
Volume65
Issue number6
DOIs
StatePublished - Dec 1 1994

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ASJC Scopus subject areas

  • Instrumentation

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