Abstract
Keywords:
Structural Health Monitoring, PZT Patches, Piezoelectric Impedance Response, bolt, torque, Damage Assessment Indices.
Abstract:
This work presents a study on development of a practical and quantitative technique for assessment of the structural health condition by piezoelectric Impedance-based technique associated with longitudinal wave propagation method. The bolt fastening condition is adjusted by torque wrench. In order to estimate the damage condition numerically, three damage indics, impedance peak frequency shift ΔF is proposedin this paper. Futhermore, an assessment method is described for estimation of the damage by using these three damage indics.