Creep Analysis of an Isotropic Functionally Graded Rotating Disc

Abstract Creep response for isotropic axisymmetric rotating disc made of a particle-reinforced FGM has been investigated in the present study. The result obtained for non linear variation of particle distribution along the radial distance of the disc are compared with that of discs containing the same amount of particle distributed uniformly or linearly along the radial distance. The disc under investigation is made of AlSiC particulate composite. Creep behavior of the disc is described by Sherby’s model. The material parameters of creep vary along the radial distance in the disc due to varying composition, and this variation has been estimated by regression fit of the available experimental data. It is found that a functionally graded rotating disc with parabolic profile can be more efficient than those with uniform distribution or linear variations of particle.