复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (7): 19-26.DOI: 10.19936/j.cnki.2096-8000.20250728.003

• 基础与力学性能研究 • 上一篇    下一篇

复合材料-钛合金带衬套螺栓连接拉伸性能的数值模拟分析

崔九洋, 赵江铭*, 郑思民, 郑艳萍   

  1. 郑州大学 机械与动力工程学院,郑州 450001
  • 收稿日期:2024-05-28 出版日期:2025-07-28 发布日期:2025-08-22
  • 通讯作者: 赵江铭(1972—),男,博士,讲师,硕士生导师,主要从事复合材料无损检测和机械结构强度等方面的研究,zhaojiangming@126.com。
  • 作者简介:崔九洋(1999—),男,硕士研究生,主要研究方向为复合材料连接结构强度。
  • 基金资助:
    国家自然科学基金(12302106)

Numerical simulation on the tensile properties of composite titanium alloy bolted connections with sleeve

CUI Jiuyang, ZHAO Jiangming*, ZHENG Simin, ZHENG Yanping   

  1. School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
  • Received:2024-05-28 Online:2025-07-28 Published:2025-08-22

摘要: 本文在试验验证仿真模型可行性的基础上,通过数值模拟方法探究了衬套材料、螺栓孔尺寸、螺栓预紧力等参数对复合材料-钛合金带衬套螺栓连接结构拉伸性能的影响,为该结构的设计提供一定的理论参考。研究结果表明:衬套材料对带衬套螺栓接头承载能力的影响几乎可以忽略;螺栓孔径为5~7 mm时,增大螺栓孔尺寸可以提高接头的承载能力,当螺栓孔径为7 mm时,相较于未使用衬套的接头,带衬套接头的拉伸失效载荷提升了32.21%,当孔径超过7 mm时,接头的承载能力有所下降;拧紧力矩为0.5~3.5 N·m时,增加螺栓拧紧力矩可以提高接头的承载能力,当拧紧力矩超过3.5 N·m时,接头的承载能力有所下降。

关键词: 碳纤维复合材料, 螺栓接头, 衬套, 衬套材料, 螺栓孔径, 预紧力

Abstract: Based on experimental verification of the feasibility of the simulation model, this paper investigates the influence of sleeve material, bolt aperture size and bolt preload on the tensile properties of composite-titanium alloy bolted joints with sleeve, using numerical simulation methods. This research provides some theoretical guidance for the design of the structure. The results indicate that the influence of sleeve material on the bearing capacity of bolted joints with sleeve is negligible. When the bolt aperture is between 5 mm and 7 mm, increasing the bolt hole size can enhance the bearing capacity of the joint. With the 7 mm bolt aperture, the tensile failure load of the joint with sleeve increases by 32.21% compared to the joint without sleeve. However, when the hole diameter exceeds 7 mm, the bearing capacity of the joint will decrease. When the tightening torque ranges from 0.5 N·m to 3.5 N·m, increasing the bolt tightening torque can enhance the bearing capacity of the joint. But exceeding 3.5 N·m results in a decline in the bearing capacity of the joint.

Key words: carbon fiber composite materials, bolted joint, sleeve, sleeve material, bolt aperture, preload force

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