Mean Stress and Ratcheting Considerations in Uniaxial Fatigue under Stress Control

Abstract:

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The fatigue life data obtained under stress control conditions with and without mean stress are interpreted with reference to mean stress and ratcheting effects. Tests are conducted on nickel-base super-alloy Inconel 718 at 649°C and copper alloy Elbrodur-NIB at room temperature. The ratcheting strains at failure are obtained, and mean stress models such as the modified Goodman equation, the Smith-Watson-Topper parameter, and the Walker parameter are evaluated. The results are discussed in comparison for the two materials.

Info:

Periodical:

Advanced Materials Research (Volumes 41-42)

Edited by:

Xiaozhi Hu, Brent Fillery, Tarek Qasim and Kai Duan

Pages:

147-155

DOI:

10.4028/www.scientific.net/AMR.41-42.147

Citation:

K.S. Kim et al., "Mean Stress and Ratcheting Considerations in Uniaxial Fatigue under Stress Control", Advanced Materials Research, Vols. 41-42, pp. 147-155, 2008

Online since:

April 2008

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Price:

$35.00

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