航空学报 > 2024, Vol. 45 Issue (14): 429420-429420   doi: 10.7527/S1000-6893.2023.29420

薄层碳纤维/不锈钢极薄带纤维金属层板的高速冲击性能

魏士博1,2, 舒洪基1, 张晓琼1(), 赵婷婷1, 王涛1,2, 王志华1, 黄庆学1,2   

  1. 1.太原理工大学 机械与运载工程学院,太原 030024
    2.太原理工大学 金属成形技术与重型装备全国重点实验室,太原 030024
  • 收稿日期:2023-08-09 修回日期:2023-10-08 接受日期:2023-11-13 出版日期:2023-12-02 发布日期:2023-11-22
  • 通讯作者: 张晓琼 E-mail:zhangxiaoqiong@tyut.edu.cn
  • 基金资助:
    国家自然科学基金(51974196);国家自然科学基金重点专项(U22A20188);山西省科技重大专项(202101120401008);山西省基础研究青年基金(20210302124691)

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)

摘要:

为了增强碳纤维复合材料的韧性并提升其高速冲击性能,提出一种组分材料分别为30 μm厚薄层碳纤维预浸料和50 μm厚不锈钢极薄带的新型纤维金属层板——薄层碳纤维/不锈钢极薄带纤维金属层板(CUSFML)。在金属体积含量(MVF)为0.250~0.625的范围内,制备了3类薄层CUSFML。利用空气炮在45~120 m/s速度范围内对纯碳纤维层板和3类薄层CUSFML开展了高速冲击实验研究,并结合修正后的三维Hashin失效准则在ABAQUS/Explicit软件中对薄层CUSFML的高速冲击响应进行了数值仿真。系统分析了高速冲击下MVF数值变化对薄层CUSFML的动态响应特征和能量吸收的影响规律。研究结果表明:薄层CUSFML在高速冲击下的性能较传统碳纤维复合材料有显著提升。经实验数据分析及数值计算可知,所制备的薄层CUSFML的比吸能最高可达8.51 J·m2/kg,较纯碳纤维层板提升19.2%;冲击承载最高可达6 713 N,约为纯碳纤维层板的2.5倍。提高薄层CUSFML中不锈钢极薄带的体积含量在一定范围内可增强金属层塑性变形和断裂在能量吸收中的主导作用,提升层板的高速冲击性能。但随着MVF数值的持续增加,薄层CUSFML的比吸能会出现小幅下降。对比各类层板的动态响应特征后发现薄层CUSFML在MVF为0.455附近的抗冲击性能及吸能性能最为优异。

关键词: 纤维金属层板, 薄层碳纤维, 不锈钢极薄带, 高速冲击, 能量吸收

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

中图分类号: