Thermoelastic Analysis of a Rotating Laminated Composite Disk using Analytical and FE Methods

In this paper, thermoelastic stress analysis of a laminated composite rotating disk has been studied using analytical and finite element methods. The governing equations of motion for a composite rotating disk are derived based on circular disk theory of plates in conjuncture with the minimum potential energy principle. The governed equations of motions are solved analytically using Differential Quadrature Method (DQM). Moreover, for the numerical simulations in FEM, ABAQUS software is used. Two models are considered in the numerical simulations for laminated solid and annular disks as, a) a disk with only one layer in longitudinal direction and layer wise in radial direction, b) a layer wise disk in both longitudinal and radial directions, respectively. After convergence study of the solutions, the results for stress distribution in radial and circumferential directions are obtained and then compared.