A numerical creep analysis on the interaction of twin semi-elliptical cracks

被引：24
|
作者：
Si, Jun [1 ]
Xuan, Fu-Zhen [1 ]
Tu, Shan-Tong [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mech Engn, Shanghai 200237, Peoples R China
来源：
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2008年 / 85卷 / 07期
关键词：
creep crack growth; surface flaw; C* integral; finite element analysis;
D O I：
10.1016/j.ijpvp.2008.02.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The interaction and coalescence of multiple flaws will significantly influence the service life of components. In this paper, the interaction of two identical semi-elliptical cracks in a finite thickness plate subjected to the remote tension is investigated. The results indicated that interaction of multiple cracks is different between the time-dependent fracture characterized by C-integral and linear elastic fracture noted by SIF. The magnifying factors of creep fracture are obviously larger than that of the linear elastic fracture cases. Therefore, the current interaction and coalescence rule developed from linear elastic fracture analysis may lead to a non-conservative result when it is used in the assessment of creep crack. At the end, an empirical equation is developed based on the numerical results. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：459 / 467
页数：9
相关论文
共 50 条
  • [21] The initiation of environmentally assisted cracking in semi-elliptical surface cracks
    James, LA
    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 1998, 120 (02): : 200 - 206
  • [22] FATIGUE CRACK-GROWTH OF SEMI-ELLIPTICAL SURFACE CRACKS
    MCFADYEN, NB
    BELL, R
    VOSIKOVSKY, O
    INTERNATIONAL JOURNAL OF FATIGUE, 1990, 12 (01) : 43 - 50
  • [23] Estimation of stress intensity factors for semi-elliptical surface cracks
    Fett, T
    ENGINEERING FRACTURE MECHANICS, 2000, 66 (04) : 349 - 356
  • [24] Nonlinear buckling analysis of a semi-elliptical dome: Numerical and experimental investigations
    Barathan, Venugopal
    Rajamohan, Vasudevan
    Thin-Walled Structures, 2022, 171
  • [25] Nonlinear buckling analysis of a semi-elliptical dome: Numerical and experimental investigations
    Barathan, Venugopal
    Rajamohan, Vasudevan
    THIN-WALLED STRUCTURES, 2022, 171
  • [26] Creep fracture parameter C* solutions for semi-elliptical surface cracks in plates under tensile and bending loads
    Wang, Kai
    Wang, Guozhen
    Tu, Shantung
    Xuan, Fuzhen
    FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2022, 45 (01) : 3 - 21
  • [27] Warm pre-stressing tests on specimens with semi-elliptical cracks and analysis of the results
    Yuritzinn, T.
    Ferry, L.
    Chapuliot, S.
    Moinereau, D.
    Dahl, A.
    Gilles, P.
    ENGINEERING FRACTURE MECHANICS, 2010, 77 (01) : 71 - 83
  • [28] Analysis of semi-elliptical surface cracks in the interface of bimaterial plates under tension and bending
    Liu, Zheng
    Chen, Xu
    Yu, Dunji
    Wang, Xin
    THEORETICAL AND APPLIED FRACTURE MECHANICS, 2018, 93 : 155 - 169
  • [29] AN ESTIMATION OF LOCAL STRESS INTENSITY FACTORS FOR SEMI-ELLIPTICAL SURFACE CRACKS
    FETT, T
    ENGINEERING FRACTURE MECHANICS, 1989, 34 (04) : 883 - 890
  • [30] Stress Intensity Factor Interaction Between Two Semi-Elliptical Cracks in Thin-Walled Cylinder
    Behseresht, Saeed
    Mehdizadeh, Mehdi
    SSRN, 2023,
12345