Stress intensity factors for L-shaped corner cracks in steel members with rectangular hollow section

被引：1
|
作者：
Yin, Yue [1 ,2 ]
Wang, Meng [1 ]
Han, Qinghua [1 ,2 ]
Wang, Danni [3 ]
Zhou, Liang [1 ]
机构：
[1] Tianjin Univ, Dept Civil Engn, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Key Lab Coast Civil Struct Safety, Minist Educ, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Architectural Design & Res Inst, Tianjin 300073, Peoples R China
来源：
ENGINEERING FRACTURE MECHANICS | 2017年 / 170卷
基金：
中国国家自然科学基金;
关键词：
L-shaped corner crack; Stress intensity factor; Steel member with hollow rectangular section; J-integral method; FATIGUE LIFE PREDICTION; HEAVY MINING EQUIPMENT;
D O I：
10.1016/j.engfracmech.2016.11.034
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
An L-shaped corner crack in steel members with rectangular hollow section (RHS) has two moving crack tips on flange and web plates respectively. J-integral method based on finite element analysis was adopted and stress intensity factors (SIF) were determined for L-shaped corner cracks with different combinations of flange and web crack lengths. It was found that the SIF at either crack tip is dependent not only on crack length of the same side but also on the ratio of two crack lengths. SIF solutions Were then setup for L-shaped corner cracks in steel RHS members by regression analysis. (C) 2016 Elsevier Ltd. All rights reserved.
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页码：107 / 118
页数：12
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