Open AccessOn fatigue life scatter under variable-amplitude load history
Author(s) -
Liyang Xie,
Bo Qin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2047/1/012011
Subject(s) - amplitude , variable (mathematics) , structural engineering , physics , mathematics , optics , engineering , mathematical analysis
Fatigue life scatter under a variable amplitude load history is determined by many factors such as the amplitudes of the individual load cycles, the number of the load cycles with different load levels, and the differences between the load levels as well. Besides an brief overview on the studies and experiments on the scatter of fatigue life under variable amplitude load histories, the present paper conducted a series of fatigue tests, demonstrates the life scatters under different load histories, and discusses the dominant factors of fatigue life scatter. It shows that all the load cycles play their roles for the life scatter.