Structural Health Monitoring with Piezoelectric Wafer Active Sensors, 2nd Edition

Chapter 15

Case Studies of Multi-Method SHM with PWAS Transducers

Damage ID in Experimental Signals

This chapter illustrates the SHM methodology through case studies. In the first case study, a simple situation is considered in which a specimen of simple geometry is exposed to increasing amounts of damage. The simple geometry of the specimen allows the development of closed-form analytical solutions that permit the prediction of the SHM signals to be recorded on a pristine specimen. These predictions are compared with pristine specimen experimental data in order to validate the SHM measurement method using the E/M impedance technique. Subsequently, the validated SHM method is used to record data on specimens with increasing amounts of damage. ...