Damage detection for plate-like structure using matching pursuits with chirplet atom

Yongming Feng; Li Zhou; Zhen Li

doi:10.1117/12.880263

14 April 2011 Damage detection for plate-like structure using matching pursuits with chirplet atom

Yongming Feng, Li Zhou, Zhen Li

Proceedings Volume 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011; 798128 (2011) https://doi.org/10.1117/12.880263
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

A damage localization method for plate-like structure is developed based on Lamb waves and matching pursuits method with chirplet dictionary. The matching pursuits method is employed to decompose Lamb wave signals into a linear expansion of several chirplet atoms with a fast realization algorithm. The relationship between Lamb wave's dispersion and chirplet's chirp rate is established, which can be used to identify the modes of Lamb waves. Then a method for damage localization is developed based on the difference between the baseline signals and the damaged signals. The effectiveness and accuracy of the proposed method for identifying the modes and locating defects are demonstrated by the simulation and experimental results of isotropic plate structure and honeycomb sandwich composite structure.

Citation Download Citation

Yongming Feng, Li Zhou, and Zhen Li "Damage detection for plate-like structure using matching pursuits with chirplet atom", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798128 (14 April 2011); https://doi.org/10.1117/12.880263

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