A comparative analysis on wave characteristics of viscoelastic rods coated with piezoelectric layer

Abstract

In this study, longitudinal stress waves of viscoelastic rods bonded with piezoelectric layer are tackled comparatively. The analysis is based on one-dimensional wave theory and various rheological models are considered. The new viscoelastic wave equations that include the effect of piezoelectric material layer are developed. The numerical illustrations of the wave characteristics are presented in detail. Especially, the attenuation illustrations can be regarded as significant novelties of this study for the present literature. This study can be helpful in modelling laminated piezoelectric structures having viscoelastic core as suitable to desired operating conditions.

Keywords:

• Viscoelastic rod
• rheological models
• piezoelectric layer
• phase velocity
• attenuation

Acknowledgment

The author would like to express his deep gratitude to Professor Dr.Dr.hc.M. Cengiz DÎkmeci (Istanbul Technical University) for his ongoing support and encouragement(especially, by emphasizing continuously the important of piezoelectric field effect) as academically since 1994.