Technique to minimize couplant-effect in acoustic nonlinearity measurements

Li Sun*, Salis S. Kulkarni, Jan D. Achenbach, Sridhar Krishnaswamy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

A modified technique to measure acoustic nonlinearity in fatigued components is proposed in this paper. The advantage of the proposed technique is that it minimizes measurement errors due to the couplant between the transducers and the specimen. Measurements are performed on a fatigued steel 4340 specimen and the coefficients of variation of the nonlinearity parameter are calculated. It is shown that the coefficients of variation of the nonlinearity parameter obtained using the proposed technique are approximately half of that obtained using the conventional technique.

Original languageEnglish (US)
Pages (from-to)2500-2505
Number of pages6
Journaljournal of the Acoustical Society of America
Volume120
Issue number5
DOIs
StatePublished - 2006

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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