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Fretting fatigue crack propagation under out-of-phase loading conditions using extended maximum tangential stress criterion.

Authors :
Wang, Can
Pereira, Kyvia
Wang, Dagang
Zinovev, Aleksandr
Terentyev, Dmitry
Abdel Wahab, Magd
Source :
Tribology International. Sep2023, Vol. 187, pN.PAG-N.PAG. 1p.
Publication Year :
2023

Abstract

In this paper, a numerical crack growth analysis is conducted by using the Maximum Tangential Stress (MTS) criterion and its extension, which considers the contact stress between the crack surfaces. Moreover, fretting fatigue is a multiaxial non-proportional loading problem, and most components are subjected to asynchronous loads. Therefore, this paper mostly focuses on the influence of loading phase difference (Φ) on the crack propagation behavior. Meanwhile, for the fretting fatigue problem, as there is a relationship between the crack initiation and propagation, the effect of initiation characteristics, including crack initiation position and direction is studied under different loading phase differences using Linear Elastic Fracture Mechanics (LEFM) theory. It is observed that the predicted crack path and lifetime by using the extended MTS criterion and Paris' law is in good agreement with the experimental results in the literature. It is found that the phase difference has a strong effect on the crack propagation behavior. Furthermore, we found that the crack initiation position has a greater influence on crack propagation behavior than the crack initiation direction. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0301679X
Volume :
187
Database :
Academic Search Index
Journal :
Tribology International
Publication Type :
Academic Journal
Accession number :
165042058
Full Text :
https://doi.org/10.1016/j.triboint.2023.108738