Study of load distribution in the threads of composite fasteners

Qiang Liao, Zixing Lu*, Zhenyu Yang, Xiang Feng, Zhongwei Zhang, Zhihai Feng

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

Three dimensional finite element model of composite fastener was established based on Abaqus to predict the thread load distribution of composite fasteners. In order to simulate the real situation, the nut was placed on an elastic foundation and the tension-compression modulus asymmetry of C or SiC matrix composites was considered by Abaqus users' subroutine USDFLD. Furthermore, Yamamoto's method for the metal threaded connections was empirically extended to the connections by C or SiC matrix composites with special consideration of the anisotropy and tension-compression modulus asymmetry. The effectiveness of the extended Yamamoto's method (EYM) was validated by finite element method (FEM) for different materials and different geometry parameters. The results show that the load distribution of composite fasteners is usually more uniform than that of the metal fasteners. In addition, the nonuniformity of load distribution increases with the pitch-to-diameter ratio, but the relative rotation of bolt and nut almost have no effect on the load distribution.

源语言英语
页(从-至)213-219
页数7
期刊Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
31
1
出版状态已出版 - 2月 2014
已对外发布

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Liao, Q., Lu, Z., Yang, Z., Feng, X., Zhang, Z., & Feng, Z. (2014). Study of load distribution in the threads of composite fasteners. Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica, 31(1), 213-219.