DocumentCode
954496
Title
Microwave detection of third-order nonlinearities in fatigue cracks
Author
Bahr, A.J.
Author_Institution
SRI International, Remote Measurements Laboratory, Menlo Park, USA
Volume
16
Issue
4
fYear
1980
Firstpage
150
Lastpage
152
Abstract
The results of an experiment aimed at demonstrating the possibility of detecting third-order electromagnetic nonlinearities in tight fatigue cracks are described. The postulated non-linearity was found to exist in specimens of aluminium and stainless steel using a two-frequency system operating near 10 GHz. This phenomenon could prove to be useful for non-destructive evaluation.
Keywords
aluminium; crack detection; fatigue cracks; microwave measurement; nondestructive testing; stainless steel; Al; NDT; crack detection; microwave detection; nondestructive testing; operating near 10 GHz; stainless steel; third order nonlinearities; tight fatigue cracks; two frequency system;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19800110
Filename
4243905
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