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最大主应力预测点焊疲劳寿命研究

闫坤 王瑞杰

闫坤, 王瑞杰. 最大主应力预测点焊疲劳寿命研究[J]. 机械科学与技术, 2016, 35(9): 1387-1390. doi: 10.13433/j.cnki.1003-8728.2016.0914
引用本文: 闫坤, 王瑞杰. 最大主应力预测点焊疲劳寿命研究[J]. 机械科学与技术, 2016, 35(9): 1387-1390. doi: 10.13433/j.cnki.1003-8728.2016.0914
Yan Kun, Wang Ruijie. Fatigue Life Prediction for Spot Welded Joints Considering Major Principal Stress[J]. Mechanical Science and Technology for Aerospace Engineering, 2016, 35(9): 1387-1390. doi: 10.13433/j.cnki.1003-8728.2016.0914
Citation: Yan Kun, Wang Ruijie. Fatigue Life Prediction for Spot Welded Joints Considering Major Principal Stress[J]. Mechanical Science and Technology for Aerospace Engineering, 2016, 35(9): 1387-1390. doi: 10.13433/j.cnki.1003-8728.2016.0914

最大主应力预测点焊疲劳寿命研究

doi: 10.13433/j.cnki.1003-8728.2016.0914
基金项目: 

国家自然科学基金项目(51065012)与教育部新教师基金项目(20105314120013)资助

详细信息
    作者简介:

    闫坤(1989-),硕士研究生,研究方向为机械强度及现代机械设计理论与方法,18213095027@163.com

    通讯作者:

    王瑞杰(联系人),副教授,博士,wrj@kmust.edu.cn

Fatigue Life Prediction for Spot Welded Joints Considering Major Principal Stress

  • 摘要: 采用基于最大主应力的点焊疲劳寿命预测方法对拉剪受力状态下的电阻点焊疲劳寿命进行有限元模拟。使用壳单元、CWELD点焊连接单元建立点焊有限元模型,利用商业有限元软件Nastran进行线弹性分析。通过对比分析线弹性有限元分析结果、焊接接头疲劳试验数据,拟合出基于最大主应力的点焊疲劳寿命S-N曲线,并依据拟合的S-N曲线和有限元分析取得的最大主应力预测不同载荷水平下的点焊疲劳寿命。疲劳寿命预测结果与疲劳实验结果对比表明,不同载荷下的点焊疲劳寿命预测结果与实验寿命有良好的一致性。
  • [1] Kang H T, Khosrovaneh A, Hu H, et al. A fatigue prediction method for spot welded joints[R]. SAE Technical Paper No. 2013-01-1208, 2013
    [2] Heyes P, Fermer M. A program for the fatigue analysis of automotive spot-welds based on finite element calculations[R]. SAE Technical Paper 962566, 1996
    [3] 孙成智,曹广军.基于等效结构应力的电阻点焊疲劳寿命预测[J].焊接学报,2011,32(1):105-108 Sun C Z, Cao G J. Fatigue life simulation of spot weld based on equivalent structure stresses[J]. Transactions of the China Welding Institution, 2011,32(1):105-108 (in Chinese)
    [4] Fang J, Hoff C, Holman B, et al. Weld modeling with MSC. Nastran[C]//Second MSC Worldwide Automotive User Conference, Dearborn, MI, USA, 2000
    [5] Kang H T, Dong P S, Hong J K. Fatigue analysis of spot welds using a mesh-insensitive structural stress approach[J]. International Journal of Fatigue, 2007,29(8):1546-1553
    [6] Wang R J, Shang D G, Li L S, et al. Fatigue damage model based on the natural frequency changes for spot-welded joints[J]. International Journal of Fatigue, 2008,30(6):1047-1055
    [7] Rupp A, Störzel K,Grubisic V. Computer aided dimensioning of spot-welded automotive structures[R]. SAE Technical Paper 950711, 1995
    [8] Sheppard S D, Strange M. Fatigue life estimation in resistance spot welds: initiation and early growth phase[J]. Fatigue & Fracture of Engineering Materials & Structures, 1992,15(6):531-549
    [9] Sheppard S D. Further refinement of a methodology for fatigue life estimation in resistance spot weld connections[R]. ASTM Special Technical Publication, 1996:265-282
    [10] Kang H T. Fatigue prediction of spot welded joints using equivalent structural stress[J]. Materials & Design, 2007,28(3):837-843
    [11] MSC Software Gorp. MSC/NASTRAN 2004 r1 reference manual[M]. Santa Ana, CA USA: MSC Software Gorp, 2004
    [12] Tanegashima R, Akebono H, Kato M, et al. 3-Dimensional observation of the interior fracture mechanism and establishment of cumulative fatigue damage evaluation on spot welded joints using 590 MPa-class steel[J]. International Journal of Fatigue, 2013,51:121-131
    [13] Tanegashima R, Akebono H, Kato M, et al. The influence of the load variation on fatigue strength of the spot welded joint using the high strength steel[J]. Procedia Engineering, 2011,10:3405-3410
    [14] BS 7608: 1993. Code of practice for fatigue design and assessment of steel structures[S]. British Standards Institution, 1993
    [15] IIW Joint Working Group. IIW Document XIII1965-03/XV-1127-2003 Recommendations for fatigue design of welded joints and components[S]. England: IIW/IIS, 2003
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出版历程
  • 收稿日期:  2014-08-20
  • 刊出日期:  2016-09-05

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