AN EFFECTIVE 2D LINEAR ELASTICITY VIBRATIONAL MODEL FOR LAYERED AND SANDWICH CLAMPED-CLAMPED UNIDIRECTIONAL STRIPS

摘要

An effective new model for vibration analysis of the layered, and in particular sandwich, one-span, clamped-clamped (C-C) strips and beams is presented in the paper. The model is derived directly from the local linear elasticity model (solution) for the corresponding simply supported (S-S) structures after replacing the Fourier sinus series eigenfunctions with the Bernoulli-Euler eigenfunctions. The approach is verified by comparisons of numerical results obtained with the data available in the literature. Number of layers is unlimited but the model was elaborated for the structures composed of five layers.