Journal of Theoretical
and Applied Mechanics

55, 1, pp. 189-198, Warsaw 2017
DOI: 10.15632/jtam-pl.55.1.189

An investigation of stresses and deformation states of clamped rotating functionally graded disk

Amit Kumar Thawait, Lakshman Sondhi, Shubhashis Sanyal, Shubhankar Bhowmick
The present study deals with the linear elastic analysis of variable thickness rotating disks
made of functionally graded materials (FGMs) by the finite element method. The disks have
radially varying material properties according to an exponential law, which is achieved by
the element based grading of the material properties on the meshed domain. The results are
reported for three types of thickness profiles, namely, uniform, linearly varying and concave
thickness, having their mass constant. The disks are subjected to the clamped boundary
condition at the inner surface and the free boundary condition at the outer surface. The
obtained results show that in a variable thickness rotating disk, deformation and stresses
are less as compared to the uniform thickness disk.
Keywords: functionally graded material (FGM), linear elastic analysis, annular rotating disk, variable thickness rotating disk, finite element method (FEM)