The present research work aims to analyze deformation and stresses, induced in functionally graded rotating disks of variable thicknesses. The disks are made of exponential functionally graded material, whose mechanical and physical properties vary in radial direction. Functionally gradation of the properties is achieved by element-based gradation. Uniform as well as variable thickness, namely concave profile, convex profile and linear varying profile rotating disks are analyzed for clamped-free and free-free boundary conditions. Disks are rotating in non-uniform temperature field, due to which thermomechanical elastic stresses induced in the disks. These stresses and resulting deformation, due to centrifugal force and uneven temperature distribution are evaluated and presented. Results obtained show that the deformation and stress fields in a rotating disk under thermomechanical loadings can be controlled by varying the thickness of the disk.Cite this Article Amit Kumar Thawait, Lakshman Sondhi, Shubhankar Bhowmick, Shubhashis Sanyal. Stress Analysis of Variable Thickness FGM Rotating Disks by Element based Material Gradation under Thermomechanical Loading. Trends in Machine Design. 2016; 3(3): 32–42p.
