Stress Analysis of Two-Dimensional Functionally Graded Thick Rotating Disks by Element Based Material Grading

Abstract

The present study reports the stress and deformation analysis of thick rotating disks made of two-dimensional functionally graded materials (FGMs). The analysis is carried out using element based gradation of material properties in radial and axial direction over thediscretized domain. Material properties are distributed according to power law distribution and the governing equations are derived using principle of stationary total potential (PSTP). The resulting deformation and stresses are evaluated for clamped-free boundary condition and the effect of volume fraction exponent on the deformation and stresses is investigated and presented. The results obtained show that there is a significant reduction of stresses in twodimensional FGM disks as compared to homogeneous and one dimensional FGM disks.Further, it is observed that FGM having volume fraction exponents nr=2 and nz=1 is best suitable for the rotating thick disk as it has the low radial stress and deformation.
Cite this ArticleAmit Kumar Thawait. Stress Analysis ofTwo-Dimensional Functionally GradedThick Rotating Disks by Element BasedMaterial Grading. Journal ofExperimental & Applied Mechanics.2017; 8(1): 28–36p.