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2013 (Vol. 6, Issue: 12)
Article Information:

Bending Fatigue Initiation Life Estimation of Disposable Spur Gears

Yuefeng Li, Xudong Pan and Guanglin Wang
Corresponding Author:  Yuefeng Li 

Key words:  Crack initiation life, critical plane method, disposable gears, finite element method, , ,
Vol. 6 , (12): 2227-2232
Submitted Accepted Published
December 12, 2012 January 21, 2013 July 30, 2013

A method to estimate the bending fatigue initiation life of disposable gears is proposed in this study. Disposable gears used in disposable aeronautics and space equipment undertake much higher loads than general gears. The main damage type for disposable gears is low-cycle bending fatigue failure. In the study, the finite element method is used to analyze the stress-strain state of disposable gears. The moving load model is established to simulate the real load acting on the teeth. For the purpose of analyzing the multi-axial stress state of teeth roots, the crack initiation life is calculated based on the critical plane theory. As the basis parameter of the critical plane theory, the orientation of critical plane is determined by using maximum variance method. The comparison of the simulation results and the experiment data shows that it is security to predict the bending fatigue crack initiation life of disposable gears using the method provided in the study.
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  Cite this Reference:
Yuefeng Li, Xudong Pan and Guanglin Wang, 2013. Bending Fatigue Initiation Life Estimation of Disposable Spur Gears.  Research Journal of Applied Sciences, Engineering and Technology, 6(12): 2227-2232.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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