NUMERICAL ANALYSIS OF FATIGUE BEHAVIOR OF WELDED CFCHS T-JOINTS

被引：0
|
作者：
Gu, Min [1 ,2 ]
Tong, Le-Wei [1 ,2 ]
Zhao, Xiao-Ling [3 ]
Zhang, Yun-Feng [4 ,5 ]
机构：
[1] Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Shanghai 200092, Peoples R China
[2] Tongji Univ, Coll Civil Engn, Shanghai 200092, Peoples R China
[3] Monash Univ, Dept Civil Engn, Clayton, Vic 3800, Australia
[4] Univ Maryland, Dept Civil & Environm Engn, College Pk, MD 20742 USA
[5] Tongji Univ, Coll Civil Engn, Shanghai 200092, Peoples R China
来源：
ADVANCED STEEL CONSTRUCTION | 2014年 / 10卷 / 04期
关键词：
Concrete-filled circular hollow section; Welded joints; Fatigue life prediction; Fracture mechanics; Finite element analysis; STRESS INTENSITY FACTORS; TUBULAR JOINTS; SURFACE CRACK; K-JOINTS;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Fatigue life assessment of welded joints made of circular hollow sections (CHS) with concrete filled (CF) chord member subject to vehicle load is vital in designing of CFCHS arch truss bridge. A key issue in fatigue life assessment of such joints is how to accurately estimate the stress intensity factor. This paper describes a methodology for calculating the stress intensity factor of the hot spot region in the welded CFCHS T-joints based on a finite element analysis which considers weld modeling, crack modeling and nonlinear interface element between steel and concrete. A procedure for fatigue life estimation of welded CFCHS T-joints is also established. Discussions are made on the effect of the initial crack size and concrete strength on fatigue life and hot spot stresses. The majority of crack propagation life is found to be associated with the shallow crack stage. The proposed method gives reasonable estimation of fatigue life of welded CFCHS T-joints.
引用
收藏
页码：476 / 497
页数：22
相关论文
共 50 条
  • [41] Material Flow in FSW of T-joints: Experimental and Numerical Analysis
    Buffa, G.
    Fratini, L.
    Micari, F.
    Shivpuri, R.
    [J]. INTERNATIONAL JOURNAL OF MATERIAL FORMING, 2008, 1 (Suppl 1) : 1283 - 1286
  • [42] Experimental and numerical analysis of transverse stitched T-joints in bending
    Stickler, PB
    Ramulu, M
    Johnson, PS
    [J]. COMPOSITE STRUCTURES, 2000, 50 (01) : 17 - 27
  • [43] Material Flow in FSW of T-joints: Experimental and Numerical Analysis
    G. Buffa
    L. Fratini
    F. Micari
    R. Shivpuri
    [J]. International Journal of Material Forming, 2008, 1 : 1283 - 1286
  • [44] Fatigue strength assessment of misaligned laser beam welded T-joints by effective stress method
    Oliveira, P., I
    Loureiro, A.
    Costa, J. M.
    Ferreira, J.
    Borrego, L.
    [J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2019, 173 : 68 - 78
  • [45] Experimental and finite element study of welded T-joints
    Wu, A.
    Mellor, B. G.
    Syngellakis, S.
    [J]. Advances in Experimental Mechanics IV, 2005, 3-4 : 117 - 124
  • [46] Fatigue strength assessment of laser stake-welded T-joints using local approaches
    Frank, Darko
    [J]. INTERNATIONAL JOURNAL OF FATIGUE, 2015, 73 : 77 - 87
  • [47] WELDED TUBULAR CONNECTIONS - AN INVESTIGATION OF STRESSES IN T-JOINTS
    TOPRAC, AA
    JOHNSTON, LP
    NOEL, J
    [J]. WELDING JOURNAL, 1966, 45 (01) : S1 - &
  • [48] Experimental and XFEM modelling of high cycle fatigue crack growth in steel welded T-joints
    Nikfam, M. R.
    Zeinoddini, M.
    Aghebati, F.
    Arghaei, A. A.
    [J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2019, 153 : 178 - 193
  • [49] Fatigue behaviour of T-joints for marine applications
    Marcadon, V.
    Nadot, Y.
    Roy, A.
    Gacougnolle, J.L.
    [J]. International Journal of Adhesion and Adhesives, 2006, 26 (07): : 481 - 489
  • [50] CORROSION FATIGUE-STRENGTH OF WELDED T-JOINTS FABRICATED FROM TMCP STEEL PLATE
    IWASAKI, T
    [J]. TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1986, 72 (12): : 1205 - 1205
12345