Vibration fatigue analysis and multi-axial effect in testing of aerospace structures

https://bura.brunel.ac.uk/bitstream/2438/1268/1/acgy2006bea.pdf

Bump Extraction Algorithm for Variable Amplitude Fatigue Loading

From the viewpoint of engineering applications, the prediction of the failure of railway axles plays an important role in preventing the occurrence of fatigue fractures. Combining a nonlinear damag...

Probabilistic modeling of damage accumulation for time-dependent fatigue reliability analysis of railway axle steels

A methodology for probabilistic modeling of fatigue damage accumulation for single stress level and multistress level loading is proposed in this paper. The methodology uses linear damage accumulation model of Palmgren-Miner, a probabilistic - curve, and an approach for a one-to-one transformation of probability density functions to achieve the objective. The damage accumulation is modeled as a nonstationary process as both the expected damage accumulation and its variability change with time. The proposed methodology is then used for reliability prediction under single stress level and multistress level loading, utilizing dynamic statistical model of cumulative fatigue damage. The reliability prediction under both types of loading is demonstrated with examples.

/pdf/probabilistic-modeling-of-fatigue-damage-accumulation-for-npdyqb8dy0.pdf

H.Y. Liou

Papers

Estimation of fatigue damage and fatigue life of components under random loading