NONLINEAR ULTRASONIC CHARACTERIZATION USING THE NONCOLLINEAR METHOD

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

9 Citations (Scopus)

Abstract

The measurement of material non-linearity using ultrasound is an attractive concept, offering the potential to detect fatigue damage earlier than is possible with conventional techniques. Despite this advantage and much work in the field the currently developed approaches are primarily limited to the lab environment. This is due to the difficulty in separating the material nonlinearity from that generated by equipment. This paper reports on an approach that eliminates this problem. When two shear waves interact a third wave is generated due to the material nonlinearity. This paper shows how this interaction can be used to measure material properties in damaged specimens. It goes on to show that this approach can be used to make measurements of material non-linearity both across a specimen.

Original languageEnglish
Title of host publicationREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B
EditorsDO Thompson, DE Chimenti
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics (AIP)
Pages330-337
Number of pages8
ISBN (Print)978-0-7354-0888-3
DOIs
Publication statusPublished - 2011
Event37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010) - San Diego, CA, United States
Duration: 18 Jul 201023 Jul 2010
Conference number: 37

Conference

Conference37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010)
Abbreviated titleQNDE 2010
CountryUnited States
CitySan Diego, CA
Period18/07/1023/07/10

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