Technique to minimize couplant-effect in acoustic nonlinearity measurements

Li Sun; Salis S. Kulkarni; Jan D. Achenbach; Sridhar Krishnaswamy

doi:10.1121/1.2354023

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 journal › Article › peer-review

28 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 language	English (US)
Pages (from-to)	2500-2505
Number of pages	6
Journal	journal of the Acoustical Society of America
Volume	120
Issue number	5
DOIs	https://doi.org/10.1121/1.2354023
State	Published - 2006

Funding

This work was supported by the Federal Aviation Administration under Award No. 01-C-AW-NWU to the Center for Quality Engineering and Failure Prevention at Northwestern University.

ASJC Scopus subject areas

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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10.1121/1.2354023

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title = "Technique to minimize couplant-effect in acoustic nonlinearity measurements",

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.",

author = "Li Sun and Kulkarni, {Salis S.} and Achenbach, {Jan D.} and Sridhar Krishnaswamy",

note = "Funding Information: This work was supported by the Federal Aviation Administration under Award No. 01-C-AW-NWU to the Center for Quality Engineering and Failure Prevention at Northwestern University.",

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AU - Sun, Li

AU - Kulkarni, Salis S.

AU - Achenbach, Jan D.

AU - Krishnaswamy, Sridhar

N1 - Funding Information: This work was supported by the Federal Aviation Administration under Award No. 01-C-AW-NWU to the Center for Quality Engineering and Failure Prevention at Northwestern University.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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JF - journal of the Acoustical Society of America

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ER -

Technique to minimize couplant-effect in acoustic nonlinearity measurements

Abstract

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ASJC Scopus subject areas

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