International Journal of Fatigue ( IF 5.7 ) Pub Date : 2021-08-28 , DOI: 10.1016/j.ijfatigue.2021.106515 Krešimir Vučković 1 , Ivan Čular 1 , Robert Mašović 1 , Ivica Galić 1 , Dragan Žeželj 1
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In this paper, a computational model for bending fatigue failure prediction of case hardened spur gears is proposed. The model consists of finite element gear and fatigue failure models, and it accounts for the actual stress–strain state at the tooth root by accounting for local elastic–plastic correction. By employing the proposed model, the effect of the adjacent tooth on bending fatigue lives is investigated. It is observed that bending fatigue lives can vary by approximately 22% when accounting for the adjacent tooth effect. Therefore, this effect should be considered when estimating bending fatigue lives of spur gears.
中文翻译：
考虑邻齿效应的渗碳正齿轮弯曲疲劳寿命数值模型
在本文中，提出了一种用于表面硬化直齿轮弯曲疲劳失效预测的计算模型。该模型由有限元齿轮和疲劳失效模型组成，并通过考虑局部弹塑性校正来考虑齿根处的实际应力应变状态。通过采用所提出的模型，研究了相邻齿对弯曲疲劳寿命的影响。据观察，当考虑到相邻齿效应时，弯曲疲劳寿命可能会有大约 22% 的变化。因此，在估算直齿轮的弯曲疲劳寿命时应考虑这种影响。
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