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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (14): 429420-429420.doi: 10.7527/S1000-6893.2023.29420

• Material Engineering and Mechanical Manufacturing • Previous Articles    

High⁃velocity impact performance of thin⁃ply carbon fiber/ ultra⁃thin stainless⁃steel strips fiber metal laminates

Shibo WEI1,2, Hongji SHU1, Xiaoqiong ZHANG1(), Tingting ZHAO1, Tao WANG1,2, Zhihua WANG1, Qingxue HUANG1,2   

  1. 1.College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China
    2.State Key Laboratory of Metal Forming Technology and Heavy Equipment,Taiyuan University of Technology,Taiyuan 030024,China
  • Received:2023-08-09 Revised:2023-10-08 Accepted:2023-11-13 Online:2023-12-02 Published:2023-11-22
  • Contact: Xiaoqiong ZHANG E-mail:zhangxiaoqiong@tyut.edu.cn
  • Supported by:
    National Natural Science Foundation of China(51974196);Key Program of Joint Funds of the National Natural Science Foundation of China(U22A20188);Major Science and Technology Project of Shanxi Province(202101120401008);Youth Foundation for Basic Research of Shanxi Province(20210302124691)

Abstract:

To increase the toughness and high-velocity impact performance of carbon fiber composites, a new type of fiber metal laminates—thin-ply Carbon fiber/Ultra-thin Stainless-steel strips Fiber Metal Laminates (CUSFML) was proposed, which consisted of 30 μm thick thin-ply carbon fiber prepreg and 50 μm thick ultra-thin stainless-steel strips. Three types of thin-ply CUSFML were prepared in the range of Metal Volume Fraction (MVF) from 0.250 to 0.625. The high-velocity impact experiments of the pure carbon fiber laminates and three types of thin-ply CUSFML were carried out in the velocity range of 45–120 m/s by using an air gun. Moreover, the high-velocity impact responses of thin-ply CUSFML were also numerically simulated in ABAQUS/Explicit combined with the modified 3D Hashin failure criteria. The influence of MVF values on the dynamic response characteristics and energy absorption of thin-ply CUSFML under high-velocity impact was systematically analyzed. The results show that the high-velocity impact performance of thin-ply CUSFML can be significantly improved compared with that of traditional carbon fiber laminates. Through experimental data analysis and numerical calculation, the maximum specific absorption energy of prepared thin-ply CUSFML can reach 8.51 J·m2/kg, which is 19.2% higher than that of pure carbon fiber laminates. The impact load can reach up to 6 713 N, about 2.5 times that of pure carbon fiber laminates.Results also show that increasing the volume content of ultra-thin stainless-steel strips in the thin-ply CUSFML in a certain range could enhance the leading role of plastic deformation of the metal layer and fracture in the energy absorption mechanism, and improve the high-velocity impact performance of the laminates. However, with the continuous increase of MVF value, the specific energy absorption of thin-ply CUSFML would decrease slightly. After comparing the dynamic response characteristics of various laminates, it is found that the thin-ply CUSFML have the best impact resistance and energy absorption performance near MVF of 0.455.

Key words: fiber metal laminates, thin-ply carbon fiber, ultra-thin stainless-steel strips, high-velocity impact, energy absorption

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