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Title: The Factors Affecting the Sensitivity of the Ultrasonic Inter-Modulation Technique

Abstract

A global non-destructive testing technique for detecting cracks in metal parts has been developed and the factors affecting its sensitivity investigated. A sample is excited at very-high-order modes of vibration at two frequencies and the frequency mixing measured. Experiments with fatigue-cracked steel beams demonstrate that these defects produce a strong mixing effect and that the signal relating to the frequency mixing is sensitive to the length of the crack. The sensitivity is also shown to be reliant on the modes of vibration used.

Authors:
; ; ;  [1]
  1. University of Bristol, Department of Mechanical Engineering, Queens Building, University Walk, Bristol BS8 ITR (United Kingdom)
Publication Date:
OSTI Identifier:
21054951
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 894; Journal Issue: 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Portland, OR (United States), 30 Jul - 4 Aug 2006; Other Information: DOI: 10.1063/1.2718158; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRACKS; DEFECTS; FATIGUE; FREQUENCY MIXING; METALS; MODULATION; SENSITIVITY; STEELS; ULTRASONIC TESTING

Citation Formats

Courtney, C. R. P., Drinkwater, B. W., Neild, S. A., and Wilcox, P. D. The Factors Affecting the Sensitivity of the Ultrasonic Inter-Modulation Technique. United States: N. p., 2007. Web. doi:10.1063/1.2718158.
Courtney, C. R. P., Drinkwater, B. W., Neild, S. A., & Wilcox, P. D. The Factors Affecting the Sensitivity of the Ultrasonic Inter-Modulation Technique. United States. doi:10.1063/1.2718158.
Courtney, C. R. P., Drinkwater, B. W., Neild, S. A., and Wilcox, P. D. Wed . "The Factors Affecting the Sensitivity of the Ultrasonic Inter-Modulation Technique". United States. doi:10.1063/1.2718158.
@article{osti_21054951,
title = {The Factors Affecting the Sensitivity of the Ultrasonic Inter-Modulation Technique},
author = {Courtney, C. R. P. and Drinkwater, B. W. and Neild, S. A. and Wilcox, P. D.},
abstractNote = {A global non-destructive testing technique for detecting cracks in metal parts has been developed and the factors affecting its sensitivity investigated. A sample is excited at very-high-order modes of vibration at two frequencies and the frequency mixing measured. Experiments with fatigue-cracked steel beams demonstrate that these defects produce a strong mixing effect and that the signal relating to the frequency mixing is sensitive to the length of the crack. The sensitivity is also shown to be reliant on the modes of vibration used.},
doi = {10.1063/1.2718158},
journal = {AIP Conference Proceedings},
number = 1,
volume = 894,
place = {United States},
year = {Wed Mar 21 00:00:00 EDT 2007},
month = {Wed Mar 21 00:00:00 EDT 2007}
}
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