Fatigue crack development experimental simulation in a railway structures steel under working load

The fatigue crack development regularities under working load simulation have been studied. The fatigue crack development pre-threshold region has been investigated. The level decrease method of irregular working load with similarity preservation has been applied. This is achieved with the test samp...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-01, Vol.747 (1), p.12023
Main Authors: Lebedinsky, S G, Moskvitin, G V, Pugachev, M S
Format: Article
Language:English
Subjects:
Crack propagation
Fatigue failure
Railway engineering
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Summary:The fatigue crack development regularities under working load simulation have been studied. The fatigue crack development pre-threshold region has been investigated. The level decrease method of irregular working load with similarity preservation has been applied. This is achieved with the test sample suppleness increase by a crack extension in it. Experimental dependences of the crack development rate on the number of working load blocks at its level decrease have been obtained.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/747/1/012023