Abstract
As a fatigue-sensitive component, the reliability of railway axles is critical for the safe service of high-speed trains. Fatigue is a localized process involving the nucleation and growth of cracks to failure, especially sensitive to local geometrical discontinuities. Unfortunately, in the manufacturing, operation and maintenance of railway axles, some kinds of microscopic notches are inevitably introduced. Therefore, it is important to study the notch effect on the fatigue performances of railway axle steels. Accordingly, rotating bending fatigue tests of smooth and notched specimens were conducted, in consistency with the actual service load pattern of railway axles. Finally, the theory of critical distance (TCD) was introduced for studying the fatigue behaviour of different specimens, which correlates the S–N curves of three kinds of specimens well when regarding the critical distance as a life dependent variable.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
