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The Influence of Crack Face Friction and Trapped Fluid on Surface Initiated Rolling Contact Fatigue Cracks
406
Citations
0
References
1988
Year
Trapped FluidEngineeringMechanical BehaviorMechanicsContact MechanicMechanical EngineeringCrack Face FrictionCrack GrowthSolid MechanicsFriction ControlTwo-dimensional ModelCrack FormationDynamic Crack PropagationLow-cycle FatigueMechanics Of MaterialsFracture MechanicsContact Fatigue Crack
A two-dimensional model of a surface initiated rolling contact fatigue crack has been developed. The model takes into account the effects of frictional locking between the faces of the crack, and the influence of fluid pressure acting on the crack faces. The model has been used to investigate three possible mechanisms for propagating the cracks: mode II crack growth due to the cyclic shear stresses caused by repeated rolling contact; crack growth due to fluid forced into the crack by the load; and crack growth due to fluid trapped inside the crack. The predictions of the theory are compared with the behaviour of contact fatigue cracks.