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Proceedings Paper

A study of reusable electromechanical impedance methods for structural health monitoring of civil structures
Author(s): R. Tawie; S. Na; H. K. Lee
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Paper Abstract

Up to date, various studies have been conducted using electro-mechanical impedance (EMI) method on concrete, including monitoring the strength development or to find damage in the structure. Since EMI method utilizes a single piezoelectric material to be used as an actuator and a sensor simultaneously, the method has major advantages compared to other non-destructive testing methods. However the method requires a piezoelectric material to be permanently attached or embedded into a structure. Thus when monitoring multiple structures, the method may become quite expensive. In this study, two re-usable EMI methods conducted by researchers Na et al and Tawie et al are overviewed. The idea of re-usable EMI method is still relatively new, resulting in the reduction of monitoring costs since the same piezoelectric material is used as many times as possible, while ensuring better repeatability and reliability in measurements.

Paper Details

Date Published: 19 April 2013
PDF: 6 pages
Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 869235 (19 April 2013); doi: 10.1117/12.2010077
Show Author Affiliations
R. Tawie, Univ. Teknologi MARA (Malaysia)
S. Na, KAIST (Korea, Republic of)
H. K. Lee, KAIST (Korea, Republic of)

Published in SPIE Proceedings Vol. 8692:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013
Jerome Peter Lynch; Chung-Bang Yun; Kon-Well Wang, Editor(s)

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