Strength Evaluation and Failure Prediction of Short Carbon Fiber Reinforced Nylon Spur Gears by Finite Element Modeling
Strength Evaluation and Failure Prediction of Short Carbon Fiber Reinforced Nylon Spur Gears by Finite Element Modeling
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DOI：
10.1007/s10443-012-9274-7
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发表时间：
2013-06-01
影响因子：
2.3
通讯作者：
Hossan, Mohammad Robiul
中科院分区：
文献类型：
--
作者：
Hu, Zhong;Hossan, Mohammad Robiul
本文选择短碳纤维增强尼龙直齿圆柱齿轮副、钢和未增强尼龙直齿圆柱齿轮副进行研究和比较。建立了齿轮轮齿多轴应力应变的三维有限元模型。基于不同的失效准则，包括蔡-吴准则，进行了失效预测。人们对存在应力集中和失效可能性的牙根进行了仔细的研究。模拟结果表明，通过适当控制注射成型工艺，短碳纤维增强尼龙齿轮可以提供更高的强度和更好的性能。
In this paper, short carbon fiber reinforced nylon spur gear pairs, and steel and unreinforced nylon spur gear pairs have been selected for study and comparison. A 3D finite element model was developed to simulate the multi-axial stress-strain behaviors of the gear tooth. Failure prediction has been conducted based on the different failure criteria, including Tsai-Wu criterion. The tooth roots, where has stress concentration and the potential for failure, have been carefully investigated. The modeling results show that the short carbon fiber reinforced nylon gear fabricated by properly controlled injection molding processes can provide higher strength and better performance.