Measurement and fitting techniques for the assessment of material nonlinearity using nonlinear Rayleigh waves

David Torello, Jin Yeon Kim, Jianmin Qu, Laurence J. Jacobs

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This research considers the effects of diffraction, attenuation, and the nonlinearity of generating sources on measurements of nonlinear ultrasonic Rayleigh wave propagation. A new theoretical framework for correcting measurements made with air-coupled and contact piezoelectric receivers for the aforementioned effects is provided based on analytical models and experimental considerations. A method for extracting the nonlinearity parameter β 11 is proposed based on a nonlinear least squares curve-fitting algorithm that is tailored for Rayleigh wave measurements. Quantitative experiments are conducted to confirm the predictions for the nonlinearity of the piezoelectric source and to demonstrate the effectiveness of the curve-fitting procedure. These experiments are conducted on aluminum 2024 and 7075 specimens and a β117075/β112024 measure of 1.363 agrees well with previous literature and earlier work.

Original languageEnglish
Title of host publication41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 34
EditorsDale E. Chimenti, Leonard J. Bond
Pages136-145
Number of pages10
ISBN (Electronic)9780735412927
DOIs
StatePublished - 2015
Event41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014 - Boise, United States
Duration: 20 Jul 201425 Jul 2014

Publication series

NameAIP Conference Proceedings
Volume1650
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014
Country/TerritoryUnited States
CityBoise
Period20/07/1425/07/14

Keywords

  • Attenuation effects
  • Diffraction effects
  • Nonlinear Rayleigh waves
  • Nonlinear acoustics
  • Source Nonlinearity

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