Free Vibration of Laminated Composite Plates resting on Winkler Foundations

摘要

This paper presents the free vibration of laminated composite plates resting on elastic foundations by the finite element method. The finite element used herein was developed by Kosmatka[15] using Hamilton's principle along with a first-order shear deformation theory. This element has six nodes and five nodal degrees of freedom. It has correct rank and is free of shear locking. The author of this paper later implemented elastic foundation, following the Winkler approach. Several examples are included to validate the formulation and its convergence capabilities in comparison with other finite element and mainly with exact analytical formulations.