Prediction of Retarded Fatigue Life due to a Single Overload Spike Using an Exponential Model

Nian Li Lu; Wei Gang Zhan; Yan Mei Wang

doi:10.4028/www.scientific.net/AMM.446-447.240

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 446-447Prediction of Retarded Fatigue Life due to a...

Prediction of Retarded Fatigue Life due to a Single Overload Spike Using an Exponential Model

Abstract:

Fatigue is the most common failure mechanisms in structures of construction machinery with inherent defects under variable amplitude loading, which have to endure for a long term cycle loadings in the actual service. In the present investigation an exponential model is proposed for fatigue life prediction with retardation caused by a single spike under constant amplitude loading. Comparisons between the predicted life and the experimental data are provided to demonstrate the utility and robustness of the proposed model.

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Periodical:

Applied Mechanics and Materials (Volumes 446-447)

Pages:

240-244

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.446-447.240

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Online since:

November 2013

Authors:

Nian Li Lu, Wei Gang Zhan, Yan Mei Wang

Keywords:

Exponential Model, Fatigue Life Prediction, Overload Ratio, Variable Amplitude Loading

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References

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