Structural damage detection using ultrasonic wave modulation with low-profile piezoceramic transducers

Matteo Simondi; Wieslaw J. Staszewski; Ruztamreen B. Jenal

doi:10.1117/12.815473

8 April 2009 Structural damage detection using ultrasonic wave modulation with low-profile piezoceramic transducers

Matteo Simondi, Wieslaw J. Staszewski, Ruztamreen B. Jenal

Proceedings Volume 7295, Health Monitoring of Structural and Biological Systems 2009; 72950J (2009) https://doi.org/10.1117/12.815473
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

The paper presents the application of the nonlinear acoustic technique for fatigue crack detection. The method uses frequency modulation of the high-frequency ultrasonic wave by the low-frequency modal excitation. Low-profile, surface-bonded piezoceramic transducers are used for acousto-vibration actuation and sensing. The paper investigates the application of the broad-band low-frequency modal excitation. The study demonstrates that small fatigue cracks can be detected in an aluminum plate by the increase of amplitude level of modulation sidebands in the ultrasonic spectra. However, the sidebands can be also observed when the crack is not present in the plate due intrinsic nonlinear effects. Further studies are recommended to investigate these findings.

Citation Download Citation

Matteo Simondi, Wieslaw J. Staszewski, and Ruztamreen B. Jenal "Structural damage detection using ultrasonic wave modulation with low-profile piezoceramic transducers", Proc. SPIE 7295, Health Monitoring of Structural and Biological Systems 2009, 72950J (8 April 2009); https://doi.org/10.1117/12.815473

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