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焊趾裂纹前沿扩展的动态数值仿真分析

余茜 魏国前 胡政豪 党章

余茜, 魏国前, 胡政豪, 党章. 焊趾裂纹前沿扩展的动态数值仿真分析[J]. 机械科学与技术, 2018, 37(7): 1107-1114. doi: 10.13433/j.cnki.1003-8728.2018.0715
引用本文: 余茜, 魏国前, 胡政豪, 党章. 焊趾裂纹前沿扩展的动态数值仿真分析[J]. 机械科学与技术, 2018, 37(7): 1107-1114. doi: 10.13433/j.cnki.1003-8728.2018.0715
Yu Xi, Wei Guoqian, Hu Zhenghao, Dang Zhang. Dynamic Numerical Simulation for Crack Front Propagation in Welding Toe[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(7): 1107-1114. doi: 10.13433/j.cnki.1003-8728.2018.0715
Citation: Yu Xi, Wei Guoqian, Hu Zhenghao, Dang Zhang. Dynamic Numerical Simulation for Crack Front Propagation in Welding Toe[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(7): 1107-1114. doi: 10.13433/j.cnki.1003-8728.2018.0715

焊趾裂纹前沿扩展的动态数值仿真分析

doi: 10.13433/j.cnki.1003-8728.2018.0715
基金项目: 

国家自然科学基金项目(51575408)资助

详细信息
    作者简介:

    余茜(1994-),硕士研究生,研究方向为焊接结构疲劳分析,13657118562@163.com

    通讯作者:

    魏国前,教授,硕士生导师,博士,weiguoqian@wust.edu.cn

Dynamic Numerical Simulation for Crack Front Propagation in Welding Toe

  • 摘要: 采用半圆形表征焊趾初始表面裂纹,以应力强度因子幅值作为裂纹扩展的驱动力,基于NASGRO裂纹扩展速率模型,考虑应力强度因子幅值门槛值和断裂韧性的影响,研究了整个裂纹前沿的动态演变过程。揭示了复杂焊趾形貌处初始裂纹的位置对裂纹扩展模式的影响规律,得出不同扩展模式下的疲劳寿命分布;分析了裂纹前沿应力强度因子的分布状况以及其在不同方向上的分布特点。开展了十字焊接接头的疲劳对比试验,试验结果与仿真结果具有较好的一致性。
  • [1] 张敏,丁方,吕振林,等.裂纹位置对焊接接头断裂参量的影响[J].机械科学与技术,2005,24(6):710-712,733 Zhang M, Ding F, L, Lü Z L, et al. On influence of welded joint on fracture parameter with crack in different location[J]. Mechanical Science and Technology, 2005,24(6):710-712,733(in Chinese)
    [2] 孙环,贺利乐.焊接结构件疲劳裂纹扩展的数值研究[J].机械科学与技术,2015,34(6):840-843 Sun H, He L L. Numerical study on the fatigue crack propagation of welded structure component[J]. Mechanical Science and Technology for Aerospace Engineering, 2015,34(6):840-843(in Chinese)
    [3] 宋占勋,方少轩,谢基龙.T形焊接接头根部裂纹应力强度因子研究[J].机械工程学报,2013,49(2):87-94 Song Z X, Fang S X, Xie J L. Research on stress intensity factors for weld root crack of T-butt joints[J]. Journal of Mechanical Engineering, 2013,49(2):87-94(in Chinese)
    [4] 闫玉曦,孙权,陈建钧,等.基于GTN模型的冷轧硅钢边部裂纹扩展研究[J].机械工程学报,2012,48(10):33-39 Yan Y X, Sun Q, Chen J J, et al. Analysis for the propagation of edge crack of silicon steel during cold rolling process based on GTN damage model[J]. Journal of Mechanical Engineering, 2012,48(10):33-39(in Chinese)
    [5] Pang J H L, Hoh H J, Tsang K S, et al. Fatigue crack propagation analysis for multiple weld toe cracks in cut-out fatigue test specimens from a girth welded pipe[J]. International Journal of Fatigue, 2017,94:158-165
    [6] Moreno B, Martin A, Lopez-Crespo P, et al. Estimations of fatigue life and variability under random loading in aluminum Al-2024T351 using strip yield models from NASGRO[J]. International Journal of Fatigue, 2016,91:414-422
    [7] 陆勇俊,张欢庆,王峰会,等.扩展有限元法在结构件疲劳寿命估算中的应用[J].应用力学学报,2016,33(3):441-446 Lu Y J, Zhang H Q, Wang F H, et al. The application of extended finite element method in aircraft structural component fatigue life estimation[J]. Chinese Journal of Applied Mechanics, 2016,33(3):441-446(in Chinese)
    [8] 郭树祥,许希武.任意多椭圆孔多裂纹无限大板的应力强度因子与M积分[J].固体力学学报,2006,27(1):6-14 Guo S X, Xu X W. The sifs and M-integral of the infinite plate with multiple elliptical holes and cracks[J]. Acta Mechanica Solida Sinica, 2006,27(1):6-14(in Chinese)
    [9] 李群,王芳文.含微缺陷各向异性复合材料中的Jk积分和M积分[J].西安交通大学学报,2008,42(1):60-64 Li Q, Wang F W. Jk-integral and M-integral in anisotropic composite materials containing multiple defects[J]. Journal of Xi'an Jiaotong University, 2008,42(1):60-64(in Chinese)
    [10] Aygül M, Al-Emrani M, Barsoum Z, et al. Investigation of distortion-induced fatigue cracked welded details using 3D crack propagation analysis[J]. International Journal of Fatigue, 2014,64:54-66
    [11] 郭春红,弓俊青,惠云玲,等.带裂纹钢吊车梁剩余寿命评估[J].钢结构,2010,25(11):15-18 Guo C H, Gong J Q, Hui Y L, et al. Assessment of crane girder fatigue life with initial crack[J]. Steel Construction, 2010,25(11):15-18(in Chinese)
    [12] Huang P, Peng D R, Jones R. The USAF characteristic K approach for cracks growing from small material discontinuities under combat aircraft and civil aircraft load spectra[J]. Engineering Failure Analysis, 2017,80:39-48
    [13] 廖小伟,王元清,宗亮,等.基于有效缺口应力法的钢桥焊接细节疲劳分析[J].浙江大学学报(工学版),2017,51(1):1-8 Liao X W, Wang Y Q, Zong L, et al. Fatigue analysis of typical welded joints of steel bridges using effective notch stress approach[J]. Journal of Zhejiang University (Engineering Science), 2017,51(1):1-8(in Chinese)
    [14] 乔燕,缪长青,孙传智.基于子模型法的带有表面裂纹钢丝应力强度因子研究[J].计算力学学报,2017,34(2):238-243 Qiao Y, Liao C Q, Sun C Z. Crack stress intensity factor of wire with surface crack based on sub-model method[J]. Chinese Journal of Computational Mechanics, 2017,34(2):238-243(in Chinese)
    [15] Aygül M, Al-Emrani M, Barsoum Z, et al. An investigation of distortion-induced fatigue cracking under variable amplitude loading using 3D crack propagation analysis[J]. Engineering Failure Analysis, 2014,45:151-163
    [16] Tsitouras C, Famelis I T, Simos T E. Phase-fitted Runge-Kutta pairs of orders 8(7)[J]. Journal of Computational and Applied Mathematics, 2017,321:226-231
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出版历程
  • 收稿日期:  2017-08-05
  • 刊出日期:  2018-07-05

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