残余应力对铝合金在混和应力场中疲劳裂纹的延迟作用

陈迎锋 李莹岩 牛莉莎 施惠基

陈迎锋, 李莹岩, 牛莉莎, 施惠基. 残余应力对铝合金在混和应力场中疲劳裂纹的延迟作用[J]. 航空材料学报, 2003, 23(4): 1-4.
引用本文: 陈迎锋, 李莹岩, 牛莉莎, 施惠基. 残余应力对铝合金在混和应力场中疲劳裂纹的延迟作用[J]. 航空材料学报, 2003, 23(4): 1-4.
CHEN Ying-feng, LI Ying-yan, NIU Li-sha, SHI Hui-ji. Effects of residual stress on the delay of fatigue crack initiation in the mixed-mode stress field for aluminum alloys[J]. Journal of Aeronautical Materials, 2003, 23(4): 1-4.
Citation: CHEN Ying-feng, LI Ying-yan, NIU Li-sha, SHI Hui-ji. Effects of residual stress on the delay of fatigue crack initiation in the mixed-mode stress field for aluminum alloys[J]. Journal of Aeronautical Materials, 2003, 23(4): 1-4.

残余应力对铝合金在混和应力场中疲劳裂纹的延迟作用

基金项目: 

国家重点基础研究规划项目(No.G19990650);国家自然科学基金项目(No.19972030)

详细信息
    作者简介:

    陈迎锋(1978- ),男,硕士研究生,计算固体力学研究方向.

  • 中图分类号: TG146.21;O346.23

Effects of residual stress on the delay of fatigue crack initiation in the mixed-mode stress field for aluminum alloys

  • 摘要: 利用含内缺口的圆环试件,用实验和计算的方法,研究了两种铝合金在混和应力场下的孔边裂纹萌生特性,并利用扩孔形成的残余应力和变形,探讨对延迟裂纹继续发展产生的作用。扩孔残余应力场的存在使萌生裂纹的循环周次得到提高,对于Ⅰ型应力场,延迟裂纹萌生的效果非常明显,而对于Ⅰ型和Ⅱ型混合应力场,延迟裂纹萌生的效果较弱。

     

  • [1] AHMAD J,ASHBAUGH N E.Constant K crack-propagation test specimens[J].Int J Fract, 1982,19:115-129.
    [2] CHEVERTON R D,BRYSON J W,ALEXANDER D J,SLOT T.Thermal-shock experiments flawed clad cylinders[J].Nuclear Engineering and Design,1990,124(1-2):109-119.
    [3] NUNOMURA S,ODA Y.A mixed-mode fatigue crack propagation test using a cracked ring[A].In:Mixed-mode Fatigue and Fracture[M].ESIS,1993,75-81.
    [4] SHI H J, NIU L S, MESMACQUE G,et al.Branched crack growth behavior of mixed-mode fatigue for an austenitic 304L steel[J].Inter J Fatigue,2000,22(6):457-465.
    [5] ERDOGAN F,SIH G C.On the crack extension in plates under plane loading and transverse shear[J].J Basic Engng Trans.ASME,1963,85:519-527.
    [6] SIH G C.Strain-energy-density factor applied to mixed mode crack problems[J].Int J Fract,1974,10(3):305-321.
    [7] COTTERELL B, RICE J R.Slightly curved or kinked cracks[J].Int J Fract,1980,16(2):155-169.
    [8] ARUN ROY Y,NARASIMHAN R.A finite element investigation of the effect of crack tip constraint on hole growth under mode I and mixed mode loading[J].Int J Solids and Struct,1999,36(10):1427-1447.
  • 加载中
计量
  • 文章访问数:  1427
  • HTML全文浏览量:  31
  • PDF下载量:  206
  • 被引次数: 0
出版历程
  • 收稿日期:  2003-01-29
  • 修回日期:  2003-06-01
  • 刊出日期:  2003-11-01

目录

    /

    返回文章
    返回