Determination of the Optimum Configuration for the FGM Rotating Cylinder Based on Thermo-mechanical Stresses

In this paper thermo-mechanical analysis for a rotating thick cylinder made of FGM is carried out. For this purpose, governing differential equations of the temperature and displacement distribution for the FGM cylinder have been developed assuming plane strain and axial symmetry. Then, by considering an exponential function form for the material property distribution of the FGM along the cylinder thickness; and, using analytical solution method, the governing differential equations for temperature distribution have been solved. Based on the calculated temperature distribution and governing differential equations for displacement the mechanical behavior of the cylinder has been investigated. Finally, according to the stress distributions for different rotating speed and internal pressure, the safety factors have been obtained and the optimum material distribution is determined.