Approach to Eliminate Couplant-Effect in Acoustic Nonlinearity Measurements
Journal Article
·
· AIP Conference Proceedings
- Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, IL-60208 (United States)
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.
- OSTI ID:
- 20798230
- Journal Information:
- AIP Conference Proceedings, Vol. 820, 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); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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