Impedance-Based Structural Health Monitoring for Aerospace Applications
Structural Health Monitoring (SHM)
Published Online: 15 DEC 2010
Copyright © 2010 John Wiley & Sons, Ltd. All rights reserved.
Encyclopedia of Aerospace Engineering
How to Cite
Park, G., Farrar, C. R. and Inman, D. J. 2010. Impedance-Based Structural Health Monitoring for Aerospace Applications. Encyclopedia of Aerospace Engineering. .
- Published Online: 15 DEC 2010
Various experimental studies have demonstrated that an impedance-based approach to structural health monitoring (SHM) can be an effective means of structural damage detection. Using the self-sensing and active-sensing capabilities of piezoelectric materials, the electromechanical impedance response can be monitored to provide a qualitative indication of the local health of a structure. The impedance method also has applications in the field of sensor self-diagnostics and validation for determining the operational status of piezoelectric active sensors used in SHM. This chapter presents an overview and recent applications of the impedance-based structural health-monitoring technique.
- damage detection;
- piezoelectric transducers;
- sensor validation;
- impedance method;
- structural health monitoring;
- wave propagations