Investigation on Low Cycle Fatigue Life of SC Notched Specimens

Ping Zhao; Qing Hua He; Wei Li

doi:10.4028/www.scientific.net/AMR.97-101.449

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 97-101Investigation on Low Cycle Fatigue Life of SC...

Investigation on Low Cycle Fatigue Life of SC Notched Specimens

Abstract:

A low cycle fatigue life (LCF) prediction model for nickel-based single crystal (SC) is presented based on the LCF experiments of notched specimens. Fatigue notch factor is adopted to reflect the influence of notch shape on LCF. Orientation function is adopted to modify total strain range and eliminate the influence of orientation on LCF. Cycle stress ratio is adopted to reflect the influence of mean stress and cycle character on LCF. The predicted results shows that all the data are in the factor of 2.1 scatter band, which means that the model proposed in this work is reasonable.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

449-452

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.449

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Online since:

March 2010

Authors:

Ping Zhao, Qing Hua He, Wei Li

Keywords:

Fatigue Notch Factor, Low Cycle Fatigue Life, Nickel-Based Single Crystal

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