Effect of surface crack dimension on very low cycle fatigue crack growth behavior of circumferential cracked pipes

被引：2
|
作者：
Song, Hyun-Seok [1 ]
Hwang, Jin-Ha [2 ]
Kim, Yun-Jae [1 ]
Kim, Jin-Weon [3 ]
机构：
[1] Korea Univ, Dept Mech Engn, 145,Anam Ro,Sungbuk Ku, Seoul 02841, South Korea
[2] Korea Mil Acad, Dept Mech Syst Engn, 574,Hwarang Ro,Nowon Ku, Seoul 01805, South Korea
[3] Chosun Univ, Dept Nucl Engn, Seosuk Dong, Gwangju 501759, South Korea
来源：
THIN-WALLED STRUCTURES | 2023年 / 191卷
关键词：
Circumferential surface crack; Cracked pipe test; Energy-based damage model; Fatigue crack growth simulation; Large-amplitude cyclic loading; STAINLESS-STEEL; DUCTILE FRACTURE; STRAIGHT PIPES; PREDICTION; MODEL;
D O I：
10.1016/j.tws.2023.111045
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this study, the effects of surface crack depth and length on the fracture behavior of circumferentially cracked pipes under very low cyclic loading were investigated via finite element (FE) damage analysis using an energy-based damage model. The FE analysis method was first validated by comparison with the SA508 Gr.1a surface-cracked pipe test results. Using FE damage analysis, a parametric study was conducted for a surface-cracked pipe with cracks of different depths and lengths, giving the same limit load. The variations in crack penetration and unstable fracture cycles depending on crack depth and length are discussed.
引用
收藏
页数：13
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