The Fatigue Reliability Analysis of Stress Criterion in Multiaxial High Cycle Fatigue

Guang Ping Zou; Qi Chao Xue; Zhong Liang Chang

doi:10.4028/www.scientific.net/KEM.417-418.389

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 417-418The Fatigue Reliability Analysis of Stress...

The Fatigue Reliability Analysis of Stress Criterion in Multiaxial High Cycle Fatigue

Abstract:

The stress criterion of multiaxial high cycle fatigue is a type of non-linear equation of high-order. It is used to predict the failure of fatigue in proportional torsion and bending loads. Soon-Bok Lee presented a new design criterion for fully reversed out-of phase torsion and bending. The values are randomized in different random distributions in Lee’s criterion formula. The correlations among random variables are considered and limit state equation is also established. This paper attempts to use First Order Reliability Method (FORM) and Second Order Reliability Method (SORM) to calculate the reliability of material fatigue in torsion and bending loads. The example is calculated and it is found that the failure probability estimated by using the SORM is more reliable than those of the FORM in multiaxial high cycle fatigue.

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Periodical:

Key Engineering Materials (Volumes 417-418)

Pages:

389-392

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.417-418.389

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Online since:

October 2009

Authors:

Guang Ping Zou, Qi Chao Xue, Zhong Liang Chang

Keywords:

Form, Multiaxial Fatigue, Reliability, SORM, Stress Criterion

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References

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