Thermoelastic stress analysis of a functionally graded annular rotating disc with radially varying properties

In this paper, thermoelastic stresses of a functionally graded annular rotating disc subjected to internal and external pressure has been studied. Elasticity modulus, thermal conductivity, coefficient of thermal expansion and density of the disc are presumed to vary radially in accordance with three distinct power-law functions and the Poisson's ratio remains constant. A gradient index parameter is opted among -0.5 and 0.5. When this parameter equals zero, the disc turns into an isotropic disc. The distributions of radial and tangential stresses on the disc are obtained for various gradient parameters.