Characteristics of Patch Type Smart-Piezo-Sensor for Smart Structures

Abstract:

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Structural health monitoring (SHM) is a new technology that has been increasingly evaluated by the industry as a potential approach to improve the cost and ease of structural inspection. Piezoelectric smart active layer (SAL) sensor was fabricated to verify the applicability of finding cracks and conducting source location in a various materials. A crack detection and source location works were done in three kinds of test condition such as aluminum plates with crack for patch type SAL sensor, a smart airplane with embedding SAL sensor, and a concrete beam with real crack for practical application. From this experimental study, the evaluation algorithm for the arrival time delay and decrease of signal amplitude was suggested in this paper. Consequently, it was found that the SAL sensor and detection algorithm developed in this study can be effectively used to detect and monitor damages in the both existing structures and new designed smart structures.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

2010-2015

DOI:

10.4028/www.scientific.net/KEM.297-300.2010

Citation:

D. J. Yoon et al., "Characteristics of Patch Type Smart-Piezo-Sensor for Smart Structures ", Key Engineering Materials, Vols. 297-300, pp. 2010-2015, 2005

Online since:

November 2005

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Price:

$35.00

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