COMPOSITES SCIENCE AND ENGINEERING ›› 2025, Vol. 0 ›› Issue (7): 19-26.DOI: 10.19936/j.cnki.2096-8000.20250728.003

• BASIC AND MECHANICAL PERFORMANCE RESEARCH • Previous Articles     Next Articles

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

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

CLC Number: