Structural Health Monitoring Using Smart Piezoelectric Materials

The application of the electromechanical impedance method to detect the presence of damage and monitor its progression in concrete structures is investigated using finite element analysis. The piezoelectric ceramic (PZT) patch bonded to concrete structures serves as both an actuator and a sensor in high frequency. The various health states of the structure are assessed using the root mean square deviation (RMSD) index. The harmonic response analysis in ANSYS is employed to investigate the correlation of the RMSD index with the location and extent of damage. A series of numerical studies conducted on concrete slabs and concrete beams demonstrate the potential of smart piezoelectric materials for in-situ health monitoring of structural integrity of civil infrastructures.

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