Volume 23 Issue 4
Apr.  2008
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Article Navigation >  Journal of Aerospace Power  > 2008  >  23(4): 742-746
HU Dian-yin, WANG Rong-qiao, HONG Jie, LI Qi-han. Investigation on probabilistic model for fatigue-creep failure of alloy GH30[J]. Journal of Aerospace Power, 2008, 23(4): 742-746.
Citation: HU Dian-yin, WANG Rong-qiao, HONG Jie, LI Qi-han. Investigation on probabilistic model for fatigue-creep failure of alloy GH30[J]. Journal of Aerospace Power, 2008, 23(4): 742-746.
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Investigation on probabilistic model for fatigue-creep failure of alloy GH30

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 2007-03-28
  • Rev Recd Date: 2007-05-29
  • Publish Date: 2008-04-28
    Abstract
  • Aprobabilistic model for fatigue-creep reliability analysis was studied based on the deterministic fatigue-creep failure function,and the corresponding approach was proposed.Fatigue-creep failure function of alloy GH30 at 600 ℃ was established by using the experimental results under continuous cyclic creep.With consideration of random variables,probabilistic analysis for fatigue-creep of alloy GH30 was performed.The calculations show that random variables do great contributions to the failure probability.Furthermore,the effect of different variables on failure probability can be revealed through the sensitivity analysis,helping to improve the components' life.

     

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