An Alternative Method to Evaluate Endurance Limit in Plain Steel Specimens (JIS, S15C, S45C and A286)

Takahiro Matsueda

doi:10.4028/www.scientific.net/AMM.563.85

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 563An Alternative Method to Evaluate Endurance Limit...

An Alternative Method to Evaluate Endurance Limit in Plain Steel Specimens (JIS, S15C, S45C and A286)

Abstract:

Crack size measurement is necessary in order to calculate stress intensity factor (SIF), K. Definition of the initial crack size in plain specimens is more complex than notched specimens because artificial defects are not introduced. In this study, the effect of difference between initial crack size calculated with both average grain size and maximum shear mode crack size on K, and fatigue limit value, σ_w were examined. A new alternative method to predict endurance limit of plain specimen, σ_w with a combination of threshold stress in shear mode and in Mode I was proposed.

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Periodical:

Applied Mechanics and Materials (Volume 563)

Pages:

85-89

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.563.85

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Online since:

May 2014

Authors:

Takahiro Matsueda*

Keywords:

Average Grain Size, Crack, Fatigue Limit, Stress Intensity Factor (SIF)

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