Fatigue short crack growth: Overload-induced acceleration/ retardation behavior

被引：10
|
作者：
Su, MoLin [1 ,2 ]
Hu, ChengChong [1 ,2 ]
Xu, LianYong [1 ,2 ,3 ]
Feng, Chao [1 ,2 ]
Han, YongDian [1 ,2 ]
Zhao, Lei [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300350, Peoples R China
[2] Tianjin Key Lab Adv Joining Technol, Tianjin 300350, Peoples R China
[3] Tianjin Univ, State Key Lab Engines, Tianjin 300350, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 175卷
基金：
中国国家自然科学基金;
关键词：
In -situ test; Overload; Crack growth; DIC; Plastic zone; PROPAGATION; CLOSURE; MODEL;
D O I：
10.1016/j.ijfatigue.2023.107772
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In-situ test was conducted to investigate the effect of overload (OL) on fatigue short crack growth rate (FSCGR). Mechanisms of dual crack growth competitions and overload-induced acceleration/retardation were revealed using digital image correlation (DIC) technology. Eventually, the plastic zone sizes obtained by DIC and Irwin model were compared to propose an OL-induced model to describe FSCGR.
引用
收藏
页数：7
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