Figure 3
A diagram illustrating the mechanism of crack initiation and propagation due to rolling contact fatigue at the rail head under rolling-sliding wheel loading. The diagram shows a wheel rotating in the direction of traffic, with the wheel rim making contact with the rail head. A crack is depicted forming and propagating in the rail head. The wheel rotation and traffic direction are indicated with arrows.Mechanism of crack initiation and propagation due to RCF at the rail head under rolling-sliding wheel loading in the direction of train movement. Source(s): Tawfik et al. (2023)