
Proceedings Paper
Smart acoustic emission system for wireless monitoring of concrete structuresFormat | Member Price | Non-Member Price |
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Paper Abstract
Acoustic emission (AE) has emerged as a powerful nondestructive tool to detect preexisting defects or to characterize
failure mechanisms. Recently, this technique or this kind of principle, that is an in-situ monitoring of inside damages of
materials or structures, becomes increasingly popular for monitoring the integrity of large structures. Concrete is one of
the most widely used materials for constructing civil structures. In the nondestructive evaluation point of view, a lot of
AE signals are generated in concrete structures under loading whether the crack development is active or not. Also, it
was required to find a symptom of damage propagation before catastrophic failure through a continuous monitoring.
Therefore we have done a practical study in this work to fabricate compact wireless AE sensor and to develop diagnosis
system. First, this study aims to identify the differences of AE event patterns caused by both real damage sources and
the other normal sources. Secondly, it was focused to develop acoustic emission diagnosis system for assessing the
deterioration of concrete structures such as a bridge, dame, building slab, tunnel etc. Thirdly, the wireless acoustic
emission system was developed for the application of monitoring concrete structures. From the previous laboratory study
such as AE event patterns analysis under various loading conditions, we confirmed that AE analysis provided a
promising approach for estimating the condition of damage and distress in concrete structures. In this work, the
algorithm for determining the damage status of concrete structures was developed and typical criteria for decision
making was also suggested. For the future application of wireless monitoring, a low energy consumable, compact, and
robust wireless acoustic emission sensor module was developed and applied to the concrete beam for performance test.
Finally, based on the self-developed diagnosis algorithm and compact wireless AE sensor, new AE system for practical
AE diagnosis was demonstrated for assessing the conditions of damage and distress in concrete structures.
Paper Details
Date Published: 22 April 2008
PDF: 9 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69323A (22 April 2008); doi: 10.1117/12.777545
Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)
PDF: 9 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69323A (22 April 2008); doi: 10.1117/12.777545
Show Author Affiliations
Dong-Jin Yoon, Korea Research Institute of Standards and Science (South Korea)
Young-Gil Kim, Korea Research Institute of Standards and Science (South Korea)
Young-Gil Kim, Korea Research Institute of Standards and Science (South Korea)
Chi-Yeop Kim, Korea Research Institute of Standards and Science (South Korea)
Dae-Cheol Seo, Korea Research Institute of Standards and Science (South Korea)
Dae-Cheol Seo, Korea Research Institute of Standards and Science (South Korea)
Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)
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