TITLE

Nonlinear self-modulation and subharmonic acoustic spectroscopy for damage detection and location

AUTHOR(S)
Solodov, I.; Wackerl, J.; Pfleiderer, K.; Busse, G.
PUB. DATE
June 2004
SOURCE
Applied Physics Letters;6/28/2004, Vol. 84 Issue 26, p5386
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A self-modulation mode of nonlinear acoustic vibrations of cracked detects has been analyzed and observed experimentally. Spectral patterns of the self-modulation are attributed to the sum-frequency type resonance in a multi-degree-of-freedom system and include a subharmonic spectrum as a particular case. Both the subharmonic and self-modulation modes demonstrate a high localization around the detect and provide opportunities for early detection and recognition of damaged areas.
ACCESSION #
13495688

 

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