Fatigue Life Prediction and Experiment of an Axle Housing Considering Welding Residual Stresses

被引：0
|
作者：
Zhang H. [1 ]
Gui L. [1 ]
Fan Z. [1 ]
机构：
[1] School of Vehicle and Mobility, Tsinghua University, Beijing
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2022年 / 58卷 / 24期
关键词：
axle housing; fatigue life; finite element analysis; welding residual stress;
D O I：
10.3901/JME.2022.24.102
中图分类号：
学科分类号：
摘要：
As the core component of the driving axle, the fatigue life of the axle housing has a great influence on the safety of the drive axle and the whole vehicle. For the welded axle housing, the effect of the welding residual stress should be considered. The fatigue life prediction model of a commercial vehicle axle housing considering welding residual stress via finite element method is established in this paper, the stress and strain response of the axle housing under the bending fatigue test condition are obtained and the strain-life method is applied to predict the fatigue life of the axle housing. The simulation results are compared with the dynamic strain and fatigue life test results of the bending fatigue test, which verifies the accuracy of the fatigue life prediction model in both the fatigue life and the failure location. Compared with the model without considering the welding residual stress, the fatigue life of the axle housing is reduced due to the welding residual stress, and the failure location is different, which indicates the necessity of considering the welding residual stress in the fatigue life prediction. The method presented in this paper could be applied to the fatigue life prediction of structures with welding residual stress, which could provide guidance for structural optimization design. © 2022 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
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页码：102 / 110
页数：8
相关论文
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