Effects of stop hole on crack turning, residual fatigue life and crack tip stress field

被引：11
|
作者：
Hu, Yun [1 ]
Song, Minjie [1 ]
Liu, Jiaming [1 ]
Lei, Min [1 ]
机构：
[1] Nanchang Univ, Sch Mech Engn, Nanchang 330031, Jiangxi, Peoples R China
来源：
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING | 2020年 / 42卷 / 05期
关键词：
Stop hole; Crack turning; Residual fatigue life; Stress field; GROWTH; FRACTURE; REPAIR; PROPAGATION; INITIATION; STRENGTH; ARREST;
D O I：
10.1007/s40430-020-02299-1
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The aim of this paper is to research the effects of stop hole on crack turning, residual fatigue life and crack tip stress field, in which the location, size and shape of stop hole are considered. The numerical model is established according to M-integral technology, and crack turning angle is determined by maximum hoop stress criterion. The calculation results show that stop hole location has a significant effect on crack turning angle and residual fatigue life, and it should be drilled with a reasonable distance in vertical and horizontal direction around crack tip to achieve a better residual fatigue life retardation effect. The larger the stop hole size is, the wider effect range of stop hole on crack turning and residual fatigue life will be. The effects of elliptical stop hole on crack turning angle and residual fatigue life retardation are greater than that of round hole when the distance in vertical direction increases. Crack tip stress distribution is changed by increasing sigma (y) and decreasing sigma (x), and the most dramatical changes occur at the circumferential direction of 90 degrees and 270 degrees.
引用
收藏
页数：14
相关论文
共 50 条
  • [1] Effects of stop hole on crack turning, residual fatigue life and crack tip stress field
    Yun Hu
    Minjie Song
    Jiaming Liu
    Min Lei
    Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020, 42
  • [2] MACROSCOPIC RESIDUAL-STRESS AT FATIGUE CRACK TIP
    KUNZ, L
    KNESL, Z
    LUKAS, P
    KOVOVE MATERIALY-METALLIC MATERIALS, 1977, 15 (05): : 556 - 570
  • [3] Evolution of residual stress at a fatigue crack tip and its influence on crack tip shielding and plasticity
    Zhang, Zhe
    Yang, Bing
    James, Malcolm Neil
    Xiao, Shoune
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 32 : 1749 - 1760
  • [4] LOCAL RESIDUAL-STRESS NEAR FATIGUE CRACK TIP
    TAIRA, S
    TANAKA, K
    TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1979, 19 (07) : 411 - 418
  • [5] MACROSCOPIC RESIDUAL-STRESS DISTRIBUTION AT A FATIGUE CRACK TIP
    KUNZ, L
    KNESL, Z
    LUKAS, P
    FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES, 1979, 2 (03): : 279 - 287
  • [6] Effect of optimized repaired structure with a hole on crack turning and fatigue life
    Liao, Yashi
    Ma, Guozhi
    Wang, Zhineng
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING, 2024, 238 (02) : 889 - 899
  • [7] Effect of residual stress field in front of the slant precrack tip on bent fatigue crack propagation
    Shimizu, K.
    Torii, T.
    Nyuya, J.
    Ma, Y.
    PROGRESSES IN FRACTURE AND STRENGTH OF MATERIALS AND STRUCTURES, 1-4, 2007, 353-358 : 1207 - +
  • [8] Effects of crack tip plasticity on fatigue crack propagation
    Park, HB
    Kim, KM
    Lee, BW
    Rheem, KS
    JOURNAL OF NUCLEAR MATERIALS, 1996, 230 (01) : 12 - 18
  • [9] Quantifying effect of overload-induced residual stress behind crack tip on fatigue crack growth
    Lu, Weidong
    Zhang, Chunguo
    Luan, Shuai
    ENGINEERING FRACTURE MECHANICS, 2023, 292
  • [10] Surface fatigue crack propagation behavior in a residual stress field: (Fatigue crack growth law and evaluation of fatigue crack propagation rate)
    Torii, Tashiyuki
    Honda, Kazuo
    Sugiyama, Masahiko
    Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1988, 54 (505): : 1723 - 1730
12345