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Proceedings Paper

The use of matching pursuit decomposition for damage detection and localization in complex structures
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Paper Abstract

This paper focuses on damage detection, localization and quantification in metallic plates using an array of sensors and an advanced feature extraction algorithm. The Matching Pursuit Decomposition (MPD) algorithm is used for timefrequency signal analysis. Using MPD, measured signals are decomposed into multiple wave modes. The individual wave modes are analyzed to determine the cause of signal changes and the location of the damage. An aluminum plate made of 6061 alloy was instrumented with piezoelectric transducers and used for testing and validation of the proposed concept.

Paper Details

Date Published: 14 April 2011
PDF: 9 pages
Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798129 (14 April 2011); doi: 10.1117/12.880635
Show Author Affiliations
S. B. Kim, Arizona State Univ. (United States)
A. Chattopadhyay, Arizona State Univ. (United States)
A. D. Nguyen, Los Gatos Research, Inc. (United States)


Published in SPIE Proceedings Vol. 7981:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
Masayoshi Tomizuka, Editor(s)

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