Nonlinear self-modulation and subharmonic acoustic spectroscopyfor damage detection and location

DOI PDF 被引用文献19件
  • I. Solodov
    Institute for Polymer Testing and Polymer Science (IKP)-Nondestructive Testing- (ZFP) ,Stuttgart University, Stuttgart 70569, Germany
  • J. Wackerl
    Institute for Polymer Testing and Polymer Science (IKP)-Nondestructive Testing- (ZFP) ,Stuttgart University, Stuttgart 70569, Germany
  • K. Pfleiderer
    Institute for Polymer Testing and Polymer Science (IKP)-Nondestructive Testing- (ZFP) ,Stuttgart University, Stuttgart 70569, Germany
  • G. Busse
    Institute for Polymer Testing and Polymer Science (IKP)-Nondestructive Testing- (ZFP) ,Stuttgart University, Stuttgart 70569, Germany

書誌事項

公開日
2004-06-28
DOI
  • 10.1063/1.1767283
公開者
AIP Publishing

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説明

<jats:p>A self-modulation mode of nonlinear acoustic vibrations of cracked defects 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 defect and provide opportunities for early detection and recognition of damaged areas.</jats:p>

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