Abstract
This paper presents free vibration analysis of composite plates with visco-elastic material. For this purpose, maximum strain and kinetic energies of the plate are derived analytically based on the Classical Lamination Theory, and then the frequency equation are obtained by using Ritz's procedure. In numerical examples, the identified models of the material characteristics for actual visco-elastic materials by using spring-dashpot models or fractional derivative models are employed and natural frequencies and specific damping capacities are obtained numerically. Finally an experimental study is also carried out by using the experimental modal analysis, and the accuracy of identified models is discussed form the comparisons of numerical and experimental results.
