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复合材料螺栓联接螺纹载荷分布规律研究

, PP. 213-219

Keywords: 复合材料螺栓联接,载荷分布,Abaqus,三维有限元模型,Yamamoto方法

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Abstract:

基于Abaqus有限元分析软件建立了复合材料螺栓联接的三维有限元模型,以预测复合材料螺栓联接的螺纹载荷分布,为使模型符合真实情况,将螺母支承在弹性地基上并通过AbaqusUSDFLD子程序考虑了C基或SiC基复合材料拉压不对称特性。此外,本文对预测金属螺纹的载荷分布的Yamamoto方法进行了经验性的推广,使其可以反映C基或SiC基复合材料的各向异性和拉压不对称性。通过对比多组材料及几何参数下推广的Yamamoto方法(EYM)和有限元法(FEM)预测的螺纹载荷分布验证了推广的Yamamoto方法的有效性。研究结果表明:复合材料螺栓联接的载荷分布通常比金属联接的载荷分布更均匀;随着螺距与直径之比的增加,螺纹载荷分布不均程度有所增加;复合材料螺栓绕其轴线相对于螺母的转动对载荷分布几乎没有影响。

References

[1]  万玉慧. C/SiC复合材料及其构件的制备与力学性能[D]. 西安: 西北工业大学, 2005. Wan Yuhui. Preparation and mechanical properties for C/SiC composites and components[D]. Xi'an: Northwestern Polytechnical University, 2005.
[2]  Zhang Y N, Zhang L T, Cheng L F, et al. Fundamental issues of applications of C/SiC composites for re-entry vehicles[J]. Journal of Ceramic Processing Research, 2009, 10(3): 248-256.
[3]  Mei H, Cheng L F, Ke Q Q, et al. High-temperature tensile properties and oxidation behavior of carbon fiber reinforced silicon carbide bolts in a simulated re-entry environment[J]. Carbon, 2010, 48(11): 3007-3013.
[4]  Li G D, Zhang C R, Hu H F, et al. Preparation and properties of C/SiC bolts via precursor infiltration and pyrolysis process[J]. Rare Metals, 2011, 30(1 Supplement): 572-575.
[5]  Li G D, Zhang C R, Hu H F, et al. Preparation and mechanical properties of C/SiC nuts and bolts[J]. Materials Science and Engineering: A, 2012, 547: 1-5.
[6]  王 杰, 李克智, 郭领军, 等, 炭布叠层穿刺C/C复合材料螺栓连接件微观组织和力学性能[J]. 固体火箭技术, 2012, 35(2): 248-252. Wang Jie, Li Kezhi, Guo Lingjun, et al. Microstructure and mechanical properties of C/C composite bolt[J]. Journal of Solid Rocket Technology, 2012, 35(2): 248-252.
[7]  Sopwith D G. The distribution of load in screw threads[J]. Proceedings of the Institution of Mechanical Engineers, 1948, 159(1): 373-383.
[8]  山本晃. 螺纹联接的理论与计算[M]. 郭可谦, 高素娟, 译. 上海: 上海科学技术文献出版社, 1984: 45-52. Yamamoto A. The theory and computation of threads connection[M]. Guo Keqian, Gao Sujuan, translated. Shanghai: Shanghai Scientific and Technological Literature Press, 1984: 45-52.
[9]  Tanaka M, Miyazawa H, Asaba E, et al. Application of the finite element method to bolt-nut joints: Fundamental studies on analysis of bolt-nut joints using the finite element method[J]. Bulletin of JSME, 1981, 24(192): 1064-1071.
[10]  Zhao H. A numerical method for load distribution in threaded connections[J]. Journal of Mechanical Design, 1996, 118(2): 274-279.
[11]  陈海平, 曾 攀, 方 刚, 等. 螺纹副承载的分布规律[J]. 机械工程学报, 2010, 46(9): 171-178. Cheng Haiping, Zeng Pan, Fang Gang, et al. Load distribution of bolted joint[J]. Journal of Mechanical Engineering, 2010, 46(9): 171-178.
[12]  Chen J J, Shih Y S. A study of the helical effect on the thread connection by three dimensional finite element analysis[J]. Nuclear Engineering and Design, 1999, 191(2): 109-116.
[13]  Sun Y J, Liao R D. The effect of helix on the nonlinear analysis of threaded connection[J]. Advanced Materials Research, 2011, 148-149: 1741-1744.
[14]  Hetenyi M. A photoelastic study of bolt and nut fastenings[J]. Transactions of the ASME, 1943, 10(2): 93-100.
[15]  Kenny B, Patterson E A. Load and stress distribution in screw threads[J]. Experimental Mechanics, 1985, 25(3): 208-213.
[16]  Jacobsen T K, Br?ndsted P. Mechanical properties of two plain-woven chemical vapor infiltrated silicon carbide-matrix composites[J]. Journal of the American Ceramic Society, 2001, 84(5): 1043-1051.
[17]  袁 辉. 碳/碳复合材料刚度与强度预测模型研究[D]. 南京: 南京航空航天大学, 2009. Yuan Hui. Research on prediction models for stiffness and strength of C/C composites[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2009.
[18]  Nelson W D, Bunin B L, Hart-Smith L J. Critical joints in large composite aircraft structure, DP-7266[R]. 1983.

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