Thermoelastic Analysis of Rotating FGM Cylindrical Vessels In an Elastic Medium

In the present research, stress analysis of a functionally graded material cylindrical pressure vessel subjected to the simultaneous action of thermal loading, rotation and internal pressure is performed. Also it is assumed that vessel in located in an elastic medium which is designated according to the Winkler model. Except for Poisson’s ratio, all of the thermomechanical properties of the vessel are assumed to follow a power law model and vary across the radius of the vessel. Heat conduction equation and Navier equation which govern the temperature and radial displacement distribution across the radius of vessel are established and solved analytically. Closed form expressions are obtained for temperature distribution, radial displacement profile, strains and stresses components in the vessel. Parametric studies are provided to explore the effects of rotation and foundation stiffness on the structural responses of the vessel. It is shown that, foundation stiffness, power law index of the properties and angular speed all affect the stresses and displacement components of the vessel, significantly.