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
  • [1] Effect of constraint induced by crack depth on creep crack-tip stress field in CT specimens
    Wang, G. Z.
    Liu, X. L.
    Xuan, F. Z.
    Tu, S. T.
    INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2010, 47 (01) : 51 - 57
  • [2] Effect of constraint induced by crack depth on creep crack-tip stress field in CT specimens
    Wang, Guozhen
    Liu, Xiaoli
    Xuan, Fu-Zhen
    Tu, Shan-Tung
    TRANSFERABILITY AND APPLICABILITY OF CURRENT MECHANICS APPROACHES, 2009, : 201 - 206
  • [3] Crack-tip constraint effects on creep fracture
    Nguyen, BN
    Onck, P
    van der Giessen, E
    ENGINEERING FRACTURE MECHANICS, 2000, 65 (04) : 467 - 490
  • [4] Correlation of creep crack-tip constraint between axially cracked pipelines and test specimens
    Tan, J. P.
    Wang, G. Z.
    Xuan, F. Z.
    Tu, S. T.
    INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2012, 98 : 16 - 25
  • [5] Three-dimensional numerical analysis of out-of-plane creep crack-tip constraint in compact tension specimens
    Sun, P. J.
    Wang, G. Z.
    Xuan, F. Z.
    Tu, S. T.
    Wang, Z. D.
    INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2012, 96-97 : 78 - 89
  • [6] Effects of side-groove depth on creep crack-tip constraint and creep crack growth rate in C(T) specimens
    He, J. Z.
    Wang, G. Z.
    Tu, S. T.
    Xuan, F. Z.
    FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2018, 41 (02) : 260 - 272
  • [7] Effects of creep properties of materials on creep crack-tip constraint parameter R*
    Liu, S.
    Wang, G. Z.
    Xuan, F. Z.
    Tu, S. T.
    MATERIALS AT HIGH TEMPERATURES, 2016, 33 (02) : 208 - 217
  • [8] Crack-tip constraint analysis of SENB specimen under creep condition
    G. C. Jiao
    W. Z. Wang
    S. J. Tan
    C. Yu
    Y. Z. Liu
    Journal of Mechanical Science and Technology, 2015, 29 : 501 - 506
  • [9] Crack-tip constraint analysis of SENB specimen under creep condition
    Jiao, G. C.
    Wang, W. Z.
    Tan, S. J.
    Yu, C.
    Liu, Y. Z.
    JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2015, 29 (02) : 501 - 506
  • [10] NUMERICAL INVESTIGATION OF CRACK-TIP FIELDS IN VISCOPLASTIC MATERIALS
    WALZ, G
    STAMM, H
    INTERNATIONAL JOURNAL OF FRACTURE, 1993, 64 (02) : 157 - 178
12345