Cracks induced due to fretting at the edge of contact between blade and disk in turbomachinery have been identified as a possible cause for a number of aircraft-engine hardware failures. Fretting is a frictional contact phenomenon that leads to damage at the contact region between two nominally-clamped surfaces subjected to oscillatory motion of small amplitudes. The contact stresses that drive the crack nucleation are very sensitive to the shape of the contacting surfaces and the coefficient of friction. The aim of the current effort is to characterize the effect of shape of the contacting profiles on the performance of components and to develop a mechanics based tool for life prediction. The effect of coefficient of friction on the contact problem has also been investigated.