COMPOSITES SCIENCE AND ENGINEERING ›› 2025, Vol. 0 ›› Issue (4): 37-46.DOI: 10.19936/j.cnki.2096-8000.20250428.005

• BASIC AND MECHANICAL PERFORMANCE RESEARCH • Previous Articles     Next Articles

Experimental investigation and strength analysis of hybrid adhesive-woven bonding joints in steel/carbon fiber reinforced plastics

HE Xiaohong1,2, LÜ Jian1,2, ZHAI Shaojie1,2, YANG Shangyu3, ZHAO Xinbo1*   

  1. 1. College of Science, Qingdao University of Technology, Qingdao 266525, China;
    2. Laboratory of Underground Unconventional Energy Development, Qingdao University of Technology, Qingdao 266525, China;
    3. Research Institute of Engineering Materials, China Petroleum Group, Xi’an 710077, China
  • Received:2024-02-29 Online:2025-04-28 Published:2025-06-03

Abstract: Carbon fiber reinforced plastics have high strength and stiffness, and are widely used in industrial applications. The bonding form between steel and carbon fiber reinforced plastics is crucial for enhancing the strength at the bonding interface. In this study, a novel bonding structure was proposed: steel plates with equidistant holes, and carbon fiber fabric woven in an S-shape and bonded between the steel plates and carbon fibers to form a hybrid adhesive-woven bonding. The destructive tests were performed on both the hybrid adhesive-woven bonding joints and the adhesive bonding joints, comparative results indicate that the introduction of weaving process alters the stress state at the adhesive interface, transforming the failure mode from complete delamination at the steel-adhesive interface to a coupled failure mode that includes complete delamination at the steel-adhesive interface, partial delamination at the steel-adhesive interface, carbon fiber (damage) fracture, weaving slip, and steel plate distortion. Moreover, the unit thickness peak strength of the hybrid adhesive-woven bonding joints was found to be 25% higher on average than that of the adhesive bonding joints. Furthermore, the influences of the number of holes and the weaving width on the strength of the hybrid adhesive-woven bonding joints were investigated. It was observed that the strength of the bonding joints initially increased and then decreased with an increase in the number of holes. As for the weaving width, the strength of the bonding joints increased, but the rate of increase gradually slowed down. The bonding joints with a weaving width of 25 mm and a double-hole structure exhibited the highest strength, while those with a weaving width of 10 mm and a four-hole structure had the lowest strength, with an improvement of 106.38% compared to the lowest strength.

Key words: hybrid adhesive-woven bonding, number of holes, weaving width, joint strength, composites

CLC Number: