Open AccessRelation of threshold levels fatigue crack development in low-alloy steel under harmonic and operational loading
Author(s) -
S. G. Lebedinsky,
Oleg V. Naumov
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1023/1/012015
Subject(s) - materials science , diagram , structural engineering , alloy steel , fatigue testing , intensity (physics) , alloy , stress (linguistics) , beam (structure) , composite material , mathematics , engineering , physics , statistics , optics , linguistics , philosophy
The results of experimental studies of the patterns fatigue crack development in samples made of 20GFL steel cut from the cargo over-spring beam are analyzed. The relatio of the threshold stress intensity coefficient Kth, determined from the kinetic diagram of fatigue failure, and the parameters of the threshold level and the operational loading process is estimated.