edge crack studies in rotating fgm disks

This article focused on the stress analysis of an edge crack in a thin hallow rotating functionally graded material (fgm) disk. the disk is assumed to be isotropic with exponentially varying elastic modulus in the radial direction. a comprehensive study is carried out for various combinations of the crack length and orientation with the different gradation of materials. the effect of non-uniform coefficient of thermal expansion on the distribution of stress intensity factor is also studied. the results which are normalized for the advantage of non-dimensional analysis show that the material gradation, the crack orientation and the crack length have significant influence on the amount of stress intensity factors.