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Title: Approach to Eliminate Couplant-Effect in Acoustic Nonlinearity Measurements

Abstract

An approach to eliminate couplant-effect in acoustic nonlinearity measurements for fatigued components is proposed in this paper. Measurements are performed on a fatigued steel 4340 specimen using both the conventional and proposed techniques. It is observed that the coefficients of variation of the nonlinearity parameter obtained using the proposed technique is approximately half of that obtained using the conventional technique.

Authors:
; ; ;  [1]
  1. Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, IL-60208 (United States)
Publication Date:
OSTI Identifier:
20798230
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 820; Journal Issue: 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Brunswick, ME (United States), 31 Jul - 5 Aug 2005; Other Information: DOI: 10.1063/1.2184686; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACOUSTICS; FATIGUE; NONDESTRUCTIVE TESTING; NONLINEAR PROBLEMS; STEELS

Citation Formats

Sun, L., Kulkarni, S. S., Achenbach, J. D., and Krishnaswamy, S. Approach to Eliminate Couplant-Effect in Acoustic Nonlinearity Measurements. United States: N. p., 2006. Web. doi:10.1063/1.2184686.
Sun, L., Kulkarni, S. S., Achenbach, J. D., & Krishnaswamy, S. Approach to Eliminate Couplant-Effect in Acoustic Nonlinearity Measurements. United States. doi:10.1063/1.2184686.
Sun, L., Kulkarni, S. S., Achenbach, J. D., and Krishnaswamy, S. Mon . "Approach to Eliminate Couplant-Effect in Acoustic Nonlinearity Measurements". United States. doi:10.1063/1.2184686.
@article{osti_20798230,
title = {Approach to Eliminate Couplant-Effect in Acoustic Nonlinearity Measurements},
author = {Sun, L. and Kulkarni, S. S. and Achenbach, J. D. and Krishnaswamy, S.},
abstractNote = {An approach to eliminate couplant-effect in acoustic nonlinearity measurements for fatigued components is proposed in this paper. Measurements are performed on a fatigued steel 4340 specimen using both the conventional and proposed techniques. It is observed that the coefficients of variation of the nonlinearity parameter obtained using the proposed technique is approximately half of that obtained using the conventional technique.},
doi = {10.1063/1.2184686},
journal = {AIP Conference Proceedings},
number = 1,
volume = 820,
place = {United States},
year = {Mon Mar 06 00:00:00 EST 2006},
month = {Mon Mar 06 00:00:00 EST 2006}
}
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