International Journal of Steel Structures

, Volume 19, Issue 1, pp 71–81 | Cite as

Fatigue Reliability Analysis of Steel Welded Member Using Probabilistic Stress-Life Method

  • Yeon-Soo ParkEmail author


This paper attempts to develop an analytical technique for fatigue reliability evaluation of a steel welded member. The probabilistic stress-life method is an important one for the fatigue reliability evaluation of a steel welded member. In this method, the stress range frequency distribution of the stress history of a steel welded member defined as a loading block is obtained from the stress frequency analysis and the parameters of the probability distribution for the stress range frequency distribution are used for numerical simulation. The probability of failure of the steel welded member under loading block is obtained from the Monte Carlo Simulation in conjunction with the Miner’s rule, the Modified Miner’s rule, and the Haibach’s rule for fatigue damage evaluation. Through this procedure, a fatigue reliability evaluation that can predict the number of loading block of failure and the residual fatigue life is possible. Also according to the 50, 90, and 99% reliability, failure times are indicated respectively.


Fatigue Reliability Stress range frequency distribution Steel welded member Failure 


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Copyright information

© Korean Society of Steel Construction 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringChonnam National UniversityGwang-JuKorea

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