Numerical investigation on the creep crack-tip constraint induced by loading configuration of specimens

被引：59
|
作者：
Wang, G. Z. [1 ]
Li, B. K. [1 ]
Xuan, F. Z. [1 ]
Tu, S. T. [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mech & Power Engn, MOE Key Lab Pressurized Syst & Safety, Shanghai 200237, Peoples R China
来源：
ENGINEERING FRACTURE MECHANICS | 2012年 / 79卷
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
Creep; Crack-tip constraint; Loading configuration; Stress; Specimen; TRIAXIALITY PARAMETER; FRACTURE; GROWTH; FIELDS; FAMILY;
D O I：
10.1016/j.engfracmech.2011.11.014
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, the creep crack-tip constraint induced by loading configuration of specimens is quantitatively investigated by the finite element method. The results show the creep constraint induced by the loading configuration could be characterized and analyzed by the constraint parameter R. The specimen order in terms of the creep crack-tip constraint from high to low is compact tension, single edge-notched bend, single edge-notched tensile and middle-cracked tension specimen. With increasing C the constraint decreases in the specimens with different loading configurations. The effect of distances from the crack tips on the creep constraint parameter R is also analyzed. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：353 / 362
页数：10
相关论文
共 50 条
  • [21] Characterization of creep constraint effect for brazed joint specimens at crack tip by new constraint parameter As
    Jiang, Wenchun
    Luo, Yun
    Zhang, Baozhu
    Li, S-H
    Xie, X-F
    Tu, Shan-Tung
    THEORETICAL AND APPLIED FRACTURE MECHANICS, 2020, 109
  • [22] Numerical investigations of crack-tip constraint parameters in two-dimensional geometries
    Pavankumar, TV
    Chattopadhyay, J
    Dutta, BK
    Kushwaha, HS
    INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2000, 77 (06) : 345 - 355
  • [23] CORRELATION ANALYSIS BETWEEN TIME-DEPENDENT CREEP CRACK-TIP STRESS AND CONSTRAINT EFFECT ON CREEP CRACK INITIATION TIME
    Lee, Seung-Ho
    Jung, Hyun-Woo
    Kim, Yun-Jae
    Nikbin, Kamran
    Ainsworth, Robert A.
    PROCEEDINGS OF THE ASME 2020 PRESSURE VESSELS & PIPING CONFERENCE (PVP2020), VOL 6, 2020,
  • [24] Characterization of crack-tip field and constraint for bending specimens under large-scale yielding
    Y.J. Chao
    X.K. Zhu
    Y. Kim
    P.S. Lar
    M.J. Pechersky
    M.J. Morgan
    International Journal of Fracture, 2004, 127 : 283 - 302
  • [25] Crack-tip constraint analysis of bending specimens for considering higher order terms in asymptotic solution
    Wang, Jun -jun
    Liu, Chao
    Jiao, Guang-chen
    INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2024, 210
  • [26] Characterization of crack-tip field and constraint for bending specimens under large-scale yielding
    Chao, YJ
    Zhu, XK
    Kim, Y
    Lar, PS
    Pechersky, MJ
    Morgan, MJ
    INTERNATIONAL JOURNAL OF FRACTURE, 2004, 127 (03) : 283 - 302
  • [27] CREEP RELAXATION AROUND A CRACK-TIP IN AN ICE CRYSTAL
    WEI, YC
    DEMPSEY, JP
    SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (07): : 949 - 953
  • [28] Unified characterization of in-plane and out-of-plane creep constraint based on crack-tip equivalent creep strain
    Ma, H. S.
    Wang, G. Z.
    Xuan, F. Z.
    Tu, S. T.
    ENGINEERING FRACTURE MECHANICS, 2015, 142 : 1 - 20
  • [29] HIGHER-ORDER CRACK-TIP CREEP STRESS FIELDS IN MATERIALS UNDER BIAXIAL LOADING
    Shlyannikov, V. N.
    Boichenko, N. V.
    STRENGTH OF MATERIALS, 2008, 40 (06) : 615 - 628
  • [30] Higher-order crack-tip creep stress fields in materials under biaxial loading
    V. N. Shlyannikov
    N. V. Boichenko
    Strength of Materials, 2008, 40 : 615 - 628
12345