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자료유형
학술저널
저자정보
Providakis, Costas (Applied Mechanics Lab, School of Architectural Engineering, Technical University of Crete) Stefanaki, K. (Applied Mechanics Lab, School of Architectural Engineering, Technical University of Crete) Voutetaki, M. (Applied Mechanics Lab, School of Architectural Engineering, Technical University of Crete) Tsompanakis, J. (School of Environmental Engineering Technical University of Crete) Stavroulaki, M. (Applied Mechanics Lab, School of Architectural Engineering, Technical University of Crete)
저널정보
테크노프레스 Structural monitoring and maintenance Structural monitoring and maintenance 제1권 제2호
발행연도
2014.1
수록면
159 - 171 (13page)

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Real-time near and far-field monitoring of concrete structural components gives enough information on the time and condition at which damage occurs, thereby facilitating damage detection while in the same time evaluate the cause of the damage. This paper experimentally investigates an integrated monitoring technique for near and far-field damage detection in concrete structures based on simultaneous use of electromechanical admittance technique in combination with guided wave propagation. The proposed sensing system does not measure the electromechanical admittance itself but detect time variations in output voltages of the response signal obtained across the electrodes of piezoelectric transducers bonded on surfaces of concrete structures. The damage identification is based on the spectral estimation MUSIC algorithm. Experimental results show the efficiency and performance of the proposed measuring technique.

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