TY - GEN
T1 - Improvement method for impedance based non-destructive evaluation on concrete structures using a piezoceramic material
AU - Na, S.
AU - Lee, H. K.
PY - 2012
Y1 - 2012
N2 - In this study, a relatively new non-destructive evaluation technique known as electro-mechanical impedance (EMI) method has been investigated on concrete structures with large surface area. Although various studies have been conducted on concrete components, a major issue still exists as when using EMI method, damage detection can be very difficult. Due to the property of concrete, only a minor variation in the impedance signature is noticed subjected to damage. Such small change can be hard for one to verify whether the host structure is damaged or not. Since other factors can also change the impedance signature including, temperature changes, humidity and aging of the piezo material, this can increase the uncertainties when differentiating an intact case from a damaged case. In this study, the effect of a technique to enhance the damage detection ability of EMI method is evaluated on concrete structures with the aforementioned problem.
AB - In this study, a relatively new non-destructive evaluation technique known as electro-mechanical impedance (EMI) method has been investigated on concrete structures with large surface area. Although various studies have been conducted on concrete components, a major issue still exists as when using EMI method, damage detection can be very difficult. Due to the property of concrete, only a minor variation in the impedance signature is noticed subjected to damage. Such small change can be hard for one to verify whether the host structure is damaged or not. Since other factors can also change the impedance signature including, temperature changes, humidity and aging of the piezo material, this can increase the uncertainties when differentiating an intact case from a damaged case. In this study, the effect of a technique to enhance the damage detection ability of EMI method is evaluated on concrete structures with the aforementioned problem.
KW - Concrete health monitoring
KW - Electro-mechanical impedance method
KW - Non destructive evaluation
UR - https://www.scopus.com/pages/publications/84861745333
U2 - 10.1117/12.915697
DO - 10.1117/12.915697
M3 - Conference contribution
AN - SCOPUS:84861745333
SN - 9780819490056
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Health Monitoring of Structural and Biological Systems 2012
T2 - Health Monitoring of Structural and Biological Systems 2012
Y2 - 12 March 2012 through 15 March 2012
ER -