TY - GEN
T1 - Debonding condition monitoring of a CFRP laminated concrete beam using piezoelectric impedance sensor nodes
AU - Park, S.
AU - Park, S. K.
AU - Kim, J. W.
AU - Chang, H. J.
PY - 2010
Y1 - 2010
N2 - Recently, carbon fiber reinforced polymer (CFRP) laminated concrete structures are being very widely used in various engineering fields because of their several advantages. But they always have the riskiness of structural collapse accidents initiated from the debonding conditions that might occur between CFRP and concrete surface. This paper employs an electro-mechanical impedance-based wireless structural health monitoring (SHM) technique applying PZT ceramic patches to identify the debonding condition of CFRP laminated reinforced concrete beam. In the experimental study, CFRP-reinforced concrete specimens are fabricated and the impedance signals are measured from the wireless impedance sensor node according to different debonding conditions inflicted between concrete and CFRP. To investigate quantitatively the changes of the impedance measured at the PZT patches due to the debonding conditions, cross correlation (CC)-based data analysis is conducted. From this study, it is verified that the impedance-based wireless SHM technique can be effectively used for debonding monitoring of CFRP laminated concrete structures.
AB - Recently, carbon fiber reinforced polymer (CFRP) laminated concrete structures are being very widely used in various engineering fields because of their several advantages. But they always have the riskiness of structural collapse accidents initiated from the debonding conditions that might occur between CFRP and concrete surface. This paper employs an electro-mechanical impedance-based wireless structural health monitoring (SHM) technique applying PZT ceramic patches to identify the debonding condition of CFRP laminated reinforced concrete beam. In the experimental study, CFRP-reinforced concrete specimens are fabricated and the impedance signals are measured from the wireless impedance sensor node according to different debonding conditions inflicted between concrete and CFRP. To investigate quantitatively the changes of the impedance measured at the PZT patches due to the debonding conditions, cross correlation (CC)-based data analysis is conducted. From this study, it is verified that the impedance-based wireless SHM technique can be effectively used for debonding monitoring of CFRP laminated concrete structures.
UR - https://www.scopus.com/pages/publications/84863069251
M3 - Conference contribution
AN - SCOPUS:84863069251
SN - 9780415877862
T3 - Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
SP - 262
EP - 268
BT - Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
T2 - 5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010
Y2 - 11 July 2010 through 15 July 2010
ER -