Numerical investigation of the effect of hole reaming on fatigue life by cold expansion

被引：12
作者：
Liu, Kuanyu [1 ]
Yang, Xinsheng [1 ]
Zhou, Li [1 ]
Li, Ming [1 ]
Zhu, Weijin [2 ]
机构：
[1] Yantai Univ, Sch Electromech & Automot Engn, Yantai, Peoples R China
[2] Shenyang SIASUN Robot & Automat Co LTD, Shenyang, Peoples R China
来源：
TRANSACTIONS OF THE CANADIAN SOCIETY FOR MECHANICAL ENGINEERING | 2022年 / 46卷 / 02期
关键词：
cold expansion; reaming; residual stress; fatigue life; simulation; RESIDUAL-STRESS; SPLIT SLEEVE; ALLOY; CRACK;
D O I：
10.1139/tcsme-2021-0123
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The reaming process of a 6061 aluminum alloy plate after cold expansion with a split sleeve was simulated by the finite element (FE) method based on Abaqus/CAE, and the relationship between the reaming depths and the distribution of residual stress fields was obtained by analysis. The fatigue lives of the plates under different reaming depths were calculated using the fatigue analysis software FE-SAFE and verified by fatigue tests. The results showed that reaming after expansion increased the residual compressive stress at the hole edge on the entrance surface. In addition, the fatigue life of the specimens increased with increasing reaming depth, and the best fatigue gain of the specimen was obtained when the reaming depth was 0.5 mm.
引用
收藏
页码：400 / 411
页数：12
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