Research of rail traction shafts and axles fractures towards impact of service conditions and fatigue damage accumulation

Fatigue Resistance of C30 Structural Steel

“…Presence of a notch on the surface significantly changes the ratio between number of cycles required for crack initiation and propagation ratio and this is the case of the fatigue crack growth tests where an artificial notch is used for acceleration and localisation of the fatigue crack initiation. According to authors of [2,3,[14][15][16][17][18][19][20][21], materials with lower strength create on the crack tip a plastically deformed zone which slows down the fatigue crack propagation. In case of materials with higher strength this zone is not so significant and less influences (slows down) the fatigue crack propagation.…”

A New Approach for Reliability Life Prediction of Rail Vehicle Axle by Considering Vibration Measurement

“…The equivalent stress value is used to derive the logarithmic life equations given in (9)- (12). These are related to load cycle without the vibration effect for the cases when only TR and TR-LRT are in operation by considering 90% and 10% reliability [16].…”

“…Reasons of railway traction shafts and axles fracture have been investigated by Ognjanovic et al [12]. Natural vibrations of railway wheels caused by the stick-sleep process in the wheel-rail contact and the fracture of the bearing and the shaft-axle braking have been presented.…”

Purity Effect of High-Strength Steel on Failure Behavior of Automobile Front Axle

“…Guo et al analyzed the possible reasons for the fracture of a welded front axle tube structure from a mini truck [17]. Ognjanovic et al made an empirical analysis on fractures and fracture processes of the traction shafts and axles [18]. Clarke and Halimunanda provided a fracture mechanic approach to determine when the axle failed and then analyzed the rollover accident [19].…”