Prediction of fretting fatigue crack initiation and propagation lifetime for cylindrical contact configuration

被引：136

作者：

Hojjati-Talemi, Reza ^{[1
]}

Wahab, Magd Abdel ^{[1
]}

De Pauw, Jan ^{[1
]}

De Baets, Patrick ^{[1
]}

机构：

[1] Univ Ghent, Fac Engn & Architecture, Dept Mech Construct & Production, B-9000 Ghent, Belgium

来源：

TRIBOLOGY INTERNATIONAL | 2014年 / 76卷

关键词：

Fretting fatigue; Damage mechanics; Crack initiation; Crack propagation; DAMAGE MECHANICS; FRACTURE;

D O I：

10.1016/j.triboint.2014.02.017

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A fretting fatigue failure scenario can be explained by accumulation of damage, which leads to formation of initial macro-cracks at the contact interface and propagation of macro-cracks to sudden rupture of bulk material. The main aim of this study is estimating these two portions by means of a numerical modelling approach. For this purpose, an uncoupled damage model based on a thermodynamic potential function is used to model the crack initiation lifetime. In order to model crack propagation part a linear-elastic fracture mechanics approach under mixed-mode loading conditions has been considered. The crack propagation direction is defined based on experimental observation and compared with some available criteria in the literature, which are usually used for proportional loading conditions. The estimated results are compared with observed experimental lifetime and show good agreement. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：73 / 91

页数：19

共 51 条

[1] On the fretting crack nucleation with provision for size effect [J].