Journal of Guangdong University of Technology ›› 2005, Vol. 22 ›› Issue (3): 25-28.

• Comprehensive Studies • Previous Articles     Next Articles

A Description of Propagation of Short Fatigue Crack

  

  1.  (Faculty of Electronmechanical Engineering,Guangdong University of Technology,Guangzhou 510090,China)
  • Online:2005-07-02 Published:2005-07-02

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Abstract: The crack-tip extension displacement range is utilized to describe the rate of short fatigue crack propagation.The test result of normalized 15MnVNq shows that the proposed method is effective and accurate.

Key words: short fatigue crack； propagation rate； crack-tip extension displacement；

[1] Hobson P D.The formulation of a crack growth equation for short cracks. Fatigue and Fracture of Engineering Materials and Structures . 1982

[2] Eshelby J D.The determination of the elastic of an ellipsoidal inclusion and related problems. Proceedings of the Royal Society of London . 1957

[3] Nisitani H.Behavior of small cracks in fatigue and relating phenomena. Tnaaka A, Tono M, Komai K. Research on Fatigue Cracks[C]Japan: The Society of Material Science . 1985
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