Creep crack initiation and creep crack growth assessments in welded structures

被引：19
|
作者：
Assire, A
Michel, B
Raous, M
机构：
[1] Equipe MMC, CNRS, LMA, F-13402 Marseille 20, France
[2] CEA, CADARACHE, LECC,SERSI, DER, F-13108 St Paul Durance, France
来源：
NUCLEAR ENGINEERING AND DESIGN | 2001年 / 206卷 / 01期
关键词：
Crack initiation - Crack propagation - Creep - Finite element method - Numerical analysis - Structural analysis - Welds;
D O I：
10.1016/S0029-5493(00)00387-3
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In this study, creep crack initiation and creep crack growth in welded structure are analysed. An interaction phenomenon between base metal and weld metal in a cross weld plate is highlighted with a finite element model. A simplified method based on the reference stress approach is proposed to evaluate C* in welded structures. This simplified method is applied for creep crack initiation and creep crack growth assessments in the case of a double edge notched tension cross-welded plate, Correlations between crack initiation time and C* on the one hand, and between creep crack growth rate and C* on the other hand are used. Creep crack initiation time estimation for the full size welded plate is very conservative when crack initiation properties of CT specimen are used. Concerning creep crack growth evaluation, simplified estimation is in good agreement with experimental results when CT specimen crack propagation properties are used. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：45 / 56
页数：12
相关论文
共 50 条
  • [1] THE INITIATION OF CREEP CRACK-GROWTH
    AINSWORTH, RA
    INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1982, 18 (10) : 873 - 881
  • [2] THEORY OF INITIATION OF CREEP CRACK GROWTH
    VITEK, V
    INTERNATIONAL JOURNAL OF FRACTURE, 1977, 13 (01) : 39 - 50
  • [3] STRUCTURAL ASSESSMENTS OF CREEP CRACK-GROWTH
    AINSWORTH, RA
    NUCLEAR ENGINEERING AND DESIGN, 1989, 116 (03) : 321 - 328
  • [4] Assessment of a creep-fatigue crack initiation and crack propagation for a welded cylindrical shell
    Lee, Hyeong-Yeon
    Kim, Jong-Bum
    Kim, Seok-Hoon
    Lee, Jae-Han
    INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2006, 83 (11-12) : 826 - 834
  • [5] Mismatch effect in creep properties on creep crack growth behavior in welded joints
    Chen, G.
    Wang, G. Z.
    Xuan, F. Z.
    Tu, S. T.
    MATERIALS & DESIGN, 2014, 63 : 600 - 608
  • [6] Creep and creep–fatigue crack growth
    Ashok Saxena
    International Journal of Fracture, 2015, 191 : 31 - 51
  • [7] Interpretation of creep crack initiation and growth data for weldments
    Davies, C. M.
    Dean, D. W.
    Nikbin, K. M.
    O'Dowd, N. P.
    ENGINEERING FRACTURE MECHANICS, 2007, 74 (06) : 882 - 897
  • [8] STOCHASTIC MODELING OF CRACK INITIATION AND SHORT-CRACK GROWTH UNDER CREEP AND CREEP-FATIGUE CONDITIONS
    KITAMURA, T
    GHOSN, LJ
    OHTANI, R
    JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1992, 59 (02): : S35 - S42
  • [9] EVALUATION OF INITIATION CONDITION OF CREEP CRACK-GROWTH BY THE CRACK ENERGY DENSITY
    WATANABE, K
    TANI, S
    YOSHIOKA, S
    YABE, Y
    INTERNATIONAL JOURNAL OF FRACTURE, 1989, 39 (04) : 287 - 300
  • [10] Creep and creep-fatigue crack growth
    Saxena, Ashok
    INTERNATIONAL JOURNAL OF FRACTURE, 2015, 191 (1-2) : 31 - 51
12345