The factors affecting the sensitivity of the ultrasonic inter-modulation technique

C. R.P. Courtney, B. W. Drinkwater, S. A. Neild, P. D. Wilcox

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publicationVolume 26
Pages1616-1623
Number of pages8
DOIs
Publication statusPublished - 2007
EventREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION - Portland, OR, USA United States
Duration: 30 Jul 20064 Aug 2006

Publication series

NameAIP Conference Proceedings
Volume894
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION
CountryUSA United States
CityPortland, OR
Period30/07/064/08/06

Keywords

  • Bispectrum
  • Fatigue crack
  • Non-destructive testing
  • Non-linear

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

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