Journal of Guangdong University of Technology ›› 2010, Vol. 27 ›› Issue (1): 82-85.

• Comprehensive Studies • Previous Articles     Next Articles

Application of Rain—flow Counting Distribution Fitting Technique in the M ethod and Probability Estimation of Fatigue Life

  

  1. Facuhy of Civil and Transportation Engineering，Guangdong University of Technology，Guangzhou 510006，China
  • Online:2010-03-25 Published:2010-03-25

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Abstract: Rain-flow counting method is adopted to cycles from the fatigue stress spectra of a truss nodegain different stress amplitudes and their corresponding stress The W eibull probability distribution fitting is applied to the above resuhs．Based on Miner linear cumulative damage theory of fatigue，the datum of rain—flow counting results and Weibull probability distribution fitting results are used to estimate the fatigue life of the truss node．The experimental results show that the combination of the rain．flow counting method with the probability distribution fitting technique makes the estimation of the fatigue life more authentic．

Key words: rain—flow counting method；Miner rule；Weibull probability distribution；fatigue life

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