The staircase fatigue testing method is a recognized method for determining the fatigue limit of powertrain components. The purpose of this paper is to improve upon existing standards by adding common practices that will ensure a higher degree of statistical accuracy in the data. This includes specifying appropriate sample sizes, stress increments and initial load conditions, as well as making suggestions for appropriate methods of analyzing the data. Two methods (Dixon and Mood method and probit analysis method) are selected and compared in terms of relative percent difference on four parameters (mean, standard deviation, B10 fatigue strength and B50 fatigue strength). The staircase data are obtained by simulations from normal and lognormal fatigue limit distributions.
Reliability-Based Fatigue Strength Testing by the Staircase Method
Sae Technical Papers
SAE 2004 World Congress & Exhibition ; 2004
2004-03-08
Conference paper
English
Reliability-based fatigue strength testing by the staircase method
Automotive engineering | 2004
|Reliability-Based Fatigue Strength Testing by the staircase Method
British Library Conference Proceedings | 2004
|Reliability-Based Fatigue Strength Testing by the Staircase Method
British Library Conference Proceedings | 2004
|