Damage detection and locating using tone burst and continuous excitation modulation method

Zheng Li; Zhi Wang; Li Xiao; Wenzhong Qu

doi:10.1117/12.2044998

9 March 2014 Damage detection and locating using tone burst and continuous excitation modulation method

Zheng Li, Zhi Wang, Li Xiao, Wenzhong Qu

Proceedings Volume 9064, Health Monitoring of Structural and Biological Systems 2014; 90642O (2014) https://doi.org/10.1117/12.2044998
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Among structural health monitoring techniques, nonlinear ultrasonic spectroscopy methods are found to be effective diagnostic approach to detecting nonlinear damage such as fatigue crack, due to their sensitivity to incipient structural changes. In this paper, a nonlinear ultrasonic modulation method was developed to detect and locate a fatigue crack on an aluminum plate. The method is different with nonlinear wave modulation method which recognizes the modulation of low-frequency vibration and high-frequency ultrasonic wave; it recognizes the modulation of tone burst and high-frequency ultrasonic wave. In the experiment, a Hanning window modulated sinusoidal tone burst and a continuous sinusoidal excitation were simultaneously imposed on the PZT array which was bonded on the surface of an aluminum plate. The modulations of tone burst and continuous sinusoidal excitation was observed in different actuator-sensor paths, indicating the presence and location of fatigue crack. The results of experiments show that the proposed method is capable of detecting and locating the fatigue crack successfully.

Citation Download Citation

Zheng Li, Zhi Wang, Li Xiao, and Wenzhong Qu "Damage detection and locating using tone burst and continuous excitation modulation method", Proc. SPIE 9064, Health Monitoring of Structural and Biological Systems 2014, 90642O (9 March 2014); https://doi.org/10.1117/12.2044998

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available