Time-dependent Thermoelastic Creep Analysis of Thick WalledRotating FGM Cylinders Made of Al–SiC Composite

In this paper time-dependent creep evolution analysis of thick-walled rotating FGM cylinders made of Al-SiC composite has been carried out, using method of successive elastic solution. The material creep constitutive model has been described by Norton’s law, considering the experimental results of Pandey on Al-SiC composite. All mechanical and thermal properties except Poisson’s ratio are radial dependent, based on the volume content of SiC reinforcement. Loading is composed of an inertia body force due to rotation and a distributed temperature field because of steady state heat conduction from the inner to the outer surface of the cylinder. It has been found that the volume-content distribution of SiC reinforcement has a significant effect on initial elastic stress distribution. It has been concluded that radial stresses are increasing with time during creep evolution, while circumferential and effective stresses become more uniform, due to stress redistribution and finally the solution converges to stationary stresses, displacement and strains almost after fifty years.