ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 5

Calculation for Rolling Contact Fatigue Life and Strength of Case-Hardened Gear Materials by Computer

Jiang, B
Associate professoradjunct associate professor, Luoyang Institute of TechnologyWichita State University, HenanWichita, KS

Zheng, X
Assistant professor, Wichita State University, Wichita, KS

Wang, M
Engineer, Luoyang Bearing Plant, Henan,

(Received 26 November 1990; accepted 27 May 1992)

Abstract

An analysis of the rolling contact tatigue process of case-hardened gear material by means of clasticity and fracture mechanics theory has been made: the stress intensity range Δk and equation for crack growth da/dN = c(Δk)″ was put forward to calculate their fatigue life and strength in this work. The results show that the calculated data are in good agreement with the experimental ones for compound-treated, sprayed, and carbonitrided specimens. The relative errors of logarithm of cycle number are all less than 5′

Keywords:
rolling contact fatigue life and strength, case-hardened gear materials, calculation, computer

Paper ID: JTE11735J
DOI: 10.1520/JTE11735J
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