Study on bending fretting fatigue of LZ50 axle steel considering ratchetting by finite element method

被引：12

作者：

Zhu, Y. ^{[1
]}

Kang, G. ^{[1
]}

Ding, J. ^{[2
]}

Zhu, M. ^{[1
]}

机构：

[1] SW Jiaotong Univ, State Key Lab Tract Power, Chengdu 610031, Peoples R China

[2] SW Jiaotong Univ, Sch Mech & Engn, Chengdu 610031, Peoples R China

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2013年 / 36卷 / 02期

关键词：

bending fretting fatigue; crack nucleation; fatigue life; finite element analysis; ratchetting; LIFE PREDICTIONS; CRACK GROWTH; BEHAVIOR; PLASTICITY; TI-6AL-4V; STRENGTH; WEAR; INITIATION; MECHANICS;

D O I：

10.1111/j.1460-2695.2012.01705.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Based on the finite element simulation, the crack nucleation location and failure life of bending fretting fatigue are analysed and predicted for LZ50 axle steel, respectively. In the simulation, a simplified two-dimensional finite element model with an equivalent normal force is proposed and the role of ratchetting is also considered by using a new cyclic elastoplastic constitutive model. The crack nucleation location and fatigue life are finally predicted by SmithWatsonTopper (SWT) critical plane criteria referring to the finite element calculation. It is shown that the predicted results are in fairly good agreement with the experimental ones.

引用

页码：127 / 138

页数：12

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