Abstract
Creep study of rotating functionally graded (FGM) disc reinforced with non-linear SiC p with varying thickness has been analyzed using Hills yield criterion. The disc comprises of matrix of pure aluminium embedded with silicon carbide particles (SiC p ). The analysis of stresses and strains as a result of disc rotation have been calculated. Stresses and strain rates are significantly affected by varying reinforcement gradient in the disc. The FGM disc having varying thickness along the radius shows lowest strain rates for anisotropy constant G/F and H/F less than 1 which further reduces with increase in particle gradient. Thus, better design of turbine discs can be obtained by selecting appropriate material anisotropy and optimum disc profile.
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