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Volume 28 Issue 1
Jan.  2002
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Journal of Beijing University of Aeronautics and Astronautics  > 2002  >  28(1): 116-118.
HUANG Pei-yan, LUO Yi, FEI Bin-junet al. Prediction of Surface Fatigue Crack Growth Lives of Structures under Bending Loads at Elevated Temperature[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(1): 116-118. (in Chinese)
Citation: HUANG Pei-yan, LUO Yi, FEI Bin-junet al. Prediction of Surface Fatigue Crack Growth Lives of Structures under Bending Loads at Elevated Temperature[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(1): 116-118. (in Chinese)
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Prediction of Surface Fatigue Crack Growth Lives of Structures under Bending Loads at Elevated Temperature

  • 1.

    South China University of Technology, College of Traffic and Communications

  • 2. Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics

  • Received Date: 11 Jul 2000
  • Publish Date: 31 Jan 2002
    Abstract
  • Based on an empirical J-integral equation proposed earlier, surface fatigue crack growth rates along crack length and depth directions including the J-integral were developed. Using these expressions, the crack growth lives of a SUS304 steel at 550℃ under bending loads are predicted. The fatigue crack growth experiment was carried out in the same condition. The results showed that the predicted curves of crack length and crack depth vs number of cycles agree well with the experimental data. It proved that the method described were available.

     

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  • [1] Leslie B S, Dov Sherman. On the computation of stress intensity factors for three-dimensional geometries by the stiffness derivative and J-integral methods[J]. Int J of Fracture, 1992, 53:1. [2]黄培彦,福田嘉男,佐藤善美,等. 曲げ荷重下での表面き裂のj-积分の简易评价式[J].日本机械学会论文集(A编), 1992,58(554):101. [3]福田嘉男,佐藤善美, 藤冈照高,等. 高温塑性曲げ疲劳下の表面き裂の进展解析. In:第72期全国大会讲演会论文集(前刷). 东京:日本机械学会, 1994.25. [4]黄培彦,孔德清,罗立峰,等.高温受弯三维表面裂纹的j-积分公式[J].华南理工大学学报,1999,27(12):1~5. [5]Newman J C, Raju I S. An empirical stress-intensity factor equation for the surface crack[J]. Eng Fracture Mech, 1981, 15(1-2):185~192.
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