Fatigue analysis of nuclear welded structures based on structural stress and elasto-plastic fracture mechanics approach

被引：0
|
作者：
Kim, JS [1 ]
Jin, TE [1 ]
机构：
[1] Korea Power Engn Co, Yongin, Gyeonggi, South Korea
来源：
ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4 | 2005年 / 297-300卷
关键词：
fatigue; nuclear welded structure; structural stress; elasto-plastic fracture mechanics;
D O I：
10.4028/www.scientific.net/KEM.297-300.774
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the paper, the validity of the modified mesh-insensitive SS (structural stress) procedure to apply to the welded joints with local thickness variation is identified via the comparison of SCFs (stress concentration factors) calculated for various FE (finite element) models. FCI (fatigue crack initiation) cycles are determined by using the SS/EPFM (elasto-plastic fracture mechanics) approach and the various fatigue crack growth models. Fatigue test is performed to identify the validity of the fatigue analysis results. Finally, as a result of comparison among test and various analysis results, it is found that the SS/FM (fracture mechanics) approach agrees well with the fatigue test results over all cycle regions and the SS/EPFM approach is more reliable than the SS/LEFM (linear elastic fracture mechanics) approach.
引用
收藏
页码：774 / 780
页数：7
相关论文
共 50 条
  • [21] Elasto-Plastic Fracture Mechanics Analysis of the Effect of Shot Peening on 300M Steel
    Hou, Shuai
    Cai, Zhihai
    Zhu, Youli
    Zhao, Qizhi
    Chen, Yong
    Gao, Han
    Wang, Hongbo
    Li, Jing
    MATERIALS, 2021, 14 (13)
  • [22] ELASTO-PLASTIC ANALYSIS OF STRUCTURES BASED ON THERMODYNAMICS BY MATHEMATICAL-PROGRAMMING
    VASARHELYI, A
    ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK, 1989, 69 (05): : T486 - T489
  • [23] An elasto-plastic fracture mechanics based model for assessment of hydride embrittlement in zircaloy cladding tubes
    Nilsson, Karl-Fredrik
    Jaksic, Nikola
    Vokal, Vratko
    JOURNAL OF NUCLEAR MATERIALS, 2010, 396 (01) : 71 - 85
  • [24] AN EFFICIENT FETI BASED SOLVER FOR ELASTO-PLASTIC PROBLEMS OF MECHANICS
    Cermak, M.
    Kozubek, T.
    Markopoulos, A.
    COMPUTATIONAL PLASTICITY XI: FUNDAMENTALS AND APPLICATIONS, 2011, : 1341 - 1352
  • [25] Steel frame structures under elasto-plastic analysis
    Landesmann, A
    Batista, EM
    STABILITY AND DUCTILITY OF STEEL STRUCTURES, 2002, : 265 - 272
  • [26] Numerical procedure for the elasto-plastic analysis of framed structures
    Akano, M
    Shigematsu, T
    Hara, T
    Tamura, T
    ADVANCES IN STEEL STRUCTURES, VOLS 1 AND 2, 1996, : 165 - 170
  • [27] Structural mechanics and strength of flight vehicles: Determination of elasto-plastic state of thin-walled branched structures by substructuring approach
    Shishkin, V.M.
    Russian Aeronautics, 2005, 48 (01): : 17 - 22
  • [28] AN EFFICIENT TFETI BASED SOLVER FOR ELASTO-PLASTIC PROBLEMS OF MECHANICS
    Cermak, Martin
    Kozubek, Tomas
    ADVANCES IN ELECTRICAL AND ELECTRONIC ENGINEERING, 2012, 10 (01) : 57 - 62
  • [29] Elasto-plastic analysis of three-dimensional structures
    Rezaiee-Pajand, M
    Nazem, MR
    ENGINEERING COMPUTATIONS, 2003, 20 (3-4) : 274 - 295
  • [30] ELASTO-PLASTIC ANALYSIS OF RC SHELL STRUCTURES.
    Ueda, Masatoshi
    Seya, Hitoshi
    Kei, Takahiro
    1600,
12345