Detection of flexural damage stages for RC beams using Piezoelectric sensors (PZT)

다국어 초록 (Multilingual Abstract)

Structural health monitoring along with damage detection and assessment of its severity level innon-accessible reinforced concrete members using piezoelectric materials becomes essential since engineersoften face the problem of detecting hidden damage. In this study, the potential of the detection of flexuraldamage state in the lower part of the mid-span area of a simply supported reinforced concrete beam usingpiezoelectric sensors is analytically investigated. Two common severity levels of flexural damage areexamined: (i) cracking of concrete that extends from the external lower fiber of concrete up to the steelreinforcement and (ii) yielding of reinforcing bars that occurs for higher levels of bending moment and afterthe flexural cracking. The purpose of this investigation is to apply finite element modeling using admittancebased signature data to analyze its accuracy and to check the potential use of this technique to monitorstructural damage in real-time. It has been indicated that damage detection capability greatly depends on thefrequency selection rather than on the level of the harmonic excitation loading. This way, the excitationloading sequence can have a level low enough that the technique may be considered as applicable andeffective for real structures. Further, it is concluded that the closest applied piezoelectric sensor to theflexural damage demonstrates higher overall sensitivity to structural damage in the entire frequency band forboth damage states with respect to the other used sensors. However, the observed sensitivity of the othersensors becomes comparatively high in the peak values of the root mean square deviation index.

참고문헌 (Reference)

• 1 The Mathworks Inc. U.S, "Users Guide"
• 2 Providakis, C.P, "T-WiEYE : An early-age concrete strength development monitoring and miniaturized wireless impedance sensing system" 10 : 484-489, 2011
• 3 Bhalla, S., "Structural health monitoring by piezo-impedance transducers I : modelling" 17 (17): 154-165, 2004
• 4 The COMSOL Group, "Stockholm, Sweden"
• 5 Karayannis, C. G., "Smeared crack analysis for plain concrete in torsion" 126 (126): 638-645, 2000
• 6 Yun, C. B., "Smart structure technologies for civil infrastructures in Korea : recent research and applications" 7 (7): 673-688, 2011
• 7 Song, G., "Smart aggregates: multi-functional sensors for concrete structures - a tutorial and a review" 17 (17): 2008
• 8 Yang, Y., "Sensitivity of PZT impedance sensors for damage detection of concrete structures" 8 : 327-346, 2008
• 9 Providakis, C.P., "Seismic damage detection using smart piezo-transducers and electromechanical impedance signatures" 307-, 2006
• 10 Bentz, E., "Response-2000 Reinforced Concrete Sectional Analysis Using the Modified Compression Field Theory, Version 1.0.5, Software Package"
• 11 Giurgiutiu, V, "Recent advancements in the electro-mechanical (E/M) impedance method for structural health monitoring and NDE" 3329 : 536-547, 1998
• 12 Zhou, S.W., "Power flow and consumption in piezoelectrically actuated structures" 33 (33): 1305-1311, 1995
• 13 Tawie, R. and Lee, H. K., "Piezoelectric-based non-destructive monitoring of hydration of reinforced concrete as an indicator of bond development at the steel–concrete interface" 40 (40): 1697-1703, 2010
• 14 Park, G., "Overview of piezoelectric impedance-based health monitoring and path forward" 35 (35): 451-463, 2003
• 15 Tseng, K.K.H., "Non-parametric damage detection and characterization using piezoceramic material" 11 (11): 317-329, 2001
• 16 Park, S., "Multiple crack detection of concrete structures using impedance-based structural health monitoring techniques" 46 (46): 609-618, 2006
• 17 Zhou, S. W., "Integration and design of piezoceramic elements in intelligent structures" 6 (6): 733-743, 1995
• 18 Seunghee Park, "Health monitoring of steel structures using impedance of thickness modes at PZT patches" 국제구조공학회 1 (1): 339-353, 2005
• 19 Karayannis, C.G., "Experimental validation of smeared analysis for plain concrete in torsion" 126 (126): 646-653, 2000
• 20 Giurgiutiu, V., "Embedded self-sensing piezoelectric active sensors for on-line structural identification" 124 (124): 116-125, 2002
• 21 Providakis, C.P., "Electromechanical admittance-Based damage identification using Box-Behnken design of experiments" 3 (3): 211-227, 2007
• 22 Zagrai, A.N., "Electro-mechanical impedance method for crack detection in thin plates" 12 : 709-718, 2001
• 23 Park, I., "Dynamics and guided waves in a smart Timoshenko beam with lateral contraction" 22 (22): 075034-, 2013
• 24 Providakis, C. P., "Developing a multi-mode PZT transducer solution for active-sensing structural health monitoring in concrete structures" 2013
• 25 Visalakshi, T., "Detection and quantification of corrosion using Electro-Mechanical Impedance(EMI)technique" 4 : 889-891, 2011
• 26 Wu, F, "Debond detection using embedded piezoelectric elements for reinforced concrete structures – Part II : analysis and algorithm" 5 (5): 17-28, 2006
• 27 Lee, C., "De-bonding detection on a CFRP laminated concrete beam using self sensing-based multi-scale actuated sensing with statistical pattern recognition" 15 (15): 919-927, 2012
• 28 Naidu, A.S.K., "Damage severity and propagation characterization with admittance signatures of piezo transducers" 13 (13): 393-403, 2004
• 29 Liang, C., "Coupled electro-mechanical analysis of adaptive material systems-determination of the actuator power consumption and system energy transfer" 7 (7): 12-20, 1994
• 30 Song, G., "Concrete structural health monitoring using embedded piezoceramic transducers" 16 (16): 959-968, 2007
• 31 C. P. Providakis, "Comparisons of smart damping treatments based on FEM modeling of electromechanical impedance" 국제구조공학회 4 (4): 35-46, 2008
• 32 Soh, C.K., "Calibration of piezo-transducers for strength prediction and damage assessment of concrete" 14 (14): 671-684, 2005
• 33 Sun, F.P, "Automated real-time structure health monitoring via signature pattern recognition" 2443 : 236-247, 1995
• 34 Shin, S.W., "Application of electro-mechanical impedance sensing technique for online monitoring of strength development in concrete using smart PZT patches" 23 (23): 1185-1188, 2009
• 35 SabetDivsholi, B., "Application of PZT sensors for detection of damage severity and location in concrete" 7268 (7268): 2008
• 36 Yan, W., "Application of EMI technique for crack detection in continuous beams adhesively bonded with multiple piezoelectric patches" 15 (15): 1-11, 2008