Sensitivity Study on Parameters for Fatigue-Creep Modeling of Stainless Steel Materials

Xiao Cong He

doi:10.4028/www.scientific.net/AMR.628.217

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 628Sensitivity Study on Parameters for Fatigue-Creep...

Sensitivity Study on Parameters for Fatigue-Creep Modeling of Stainless Steel Materials

Abstract:

In present paper, sensitivity study on parameters for fatigue-creep model of stainless steel materials has been carried out. An analytical model has been established to predict fatigue-creep life of AISI347 stainless steel. Manson’s Universal Slopes equation has been used as an empirical correlation which relates fatigue endurance to tensile properties. Different creep prediction models have been studied in order to correlate the results of shout-time elevated temperature tests with long-term service performance at more moderate temperatures. Comparison between the different creep prediction models and experimental results were carried out for a range of stresses and temperatures. A linear damage summation method has been used to combined fatigue and creep. The results of sensitivity analysis indicate that strain range and temperature have very significant influence on creep-fatigue life estimation.

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Periodical:

Advanced Materials Research (Volume 628)

Pages:

217-220

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.628.217

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Online since:

December 2012

Authors:

Xiao Cong He

Keywords:

Fatigue-Creep Modelling, Sensitivity Study, Stainless Steel Materials, Strain Range, Temperature

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