Abstract: Fatigue strength data on rails have seldom been published. Japanese National Railways, in connection with the adoption of long rails (0.5, 1.0, 1.5 or 2.0 km) and speed-up of train operation, is vigorously pushing fatigue strength investigations as well as qualitative study of rails. Soundness of the welded rail is hard to evaluate through a mere external inspection; therefore, nondestructive testing methods such as ultrasonic, magnetic detection and mechanical methods such as static bending, repeated drop weight should be coupled with it. Present demand is to secure a sound welded rail in the field through fatigue strength comparison between the base metal of rail and the welded joint.
Publication Year: 1964
Publication Date: 1964-06-01
Language: en
Type: article
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