Effect of localized plastic deformation on higher harmonic guided wave mode generation in plate

Y. Liu, G. Choi, Clifford Jesse Lissenden, III, Joseph Lawrence Rose

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

2 Scopus citations

Abstract

The effect of the evolving microstructure of the material in a plate, including localization of plastic deformation, is investigated with respect to generation of higher harmonic ultrasonic guided wave modes. Study of nonlinear ultrasonic guided waves indicates that a select number of primary wave modes will generate cumulative secondary modes sensitive to the microstructure of the material. Two such mode pairs - S1/S2 and SH1/S1 - are investigated with the help of nonlinear finite element analysis. The result of localized microstructure evolution is demonstrated for the S1/S2 mode pair. These findings will be useful for the detection of precursors to macroscale damage such as fatigue cracks.

Original languageEnglish (US)
Title of host publicationStructural Health Monitoring 2013
Subtitle of host publicationA Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
EditorsFu-Kuo Chang
PublisherDEStech Publications
Pages1992-1999
Number of pages8
Volume2
ISBN (Electronic)9781605951157
StatePublished - Jan 1 2013
Event9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013 - Stanford, United States
Duration: Sep 10 2013Sep 12 2013

Other

Other9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013
CountryUnited States
CityStanford
Period9/10/139/12/13

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Health Information Management

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