玻璃纤维蜂窝管压缩试验及力学性能研究

全文下载： 202302008.pdf

文章编号： 1672-6987（2023）02-0055-06； DOI： 10.16351/j.1672-6987.2023.02.008

吴林华， 乐贵高*， 张震东， 张奇（南京理工大学 机械工程学院，江苏 南京 210094）

摘要： 针对复合材料压缩载荷及吸能特性现有研究的不足，提出不同壁厚、不同胞元数量的玻璃纤维蜂窝管结构，采用万能试验机进行静态压缩试验。结果表明：蜂窝管壁厚值较小时，其主要失效形式为纤维断裂；壁厚值较大时，其失效形式为纤维断裂损伤及纤维层分层。压缩峰值载荷及总吸能随胞元数量及壁厚值增加而增大，比吸能仅随其壁厚值增加而增大。壁厚值04 mm的单胞元蜂窝管压缩峰值载荷取最小值211 kN，对应的能量吸收总量为239 J，比吸能为796 J·g-1；壁厚值08 mm的八胞元蜂窝管压缩峰值载荷取最大值531 kN，对应的能量吸收总量为1 3536 J，比吸能为3688 J·g-1。

关键词： 玻璃纤维蜂窝管； 静态压缩试验； 失效形式； 压缩峰值载荷； 比吸能

中图分类号： TB 332文献标志码： A

引用格式： 吴林华， 乐贵高， 张震东， 等. 玻璃纤维蜂窝管压缩试验及力学性能研究［J］. 青岛科技大学学报(自然科学版), 2023, 44(2): 55-60.

WU Linhua, LE Guigao, ZHANG Zhendong, et al. Study on compression test and mechanical properties of glass fiber honeycomb tube［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2023， 44（2）： 55-60.

Study on Compression Test and Mechanical Properties of

Glass Fiber Honeycomb Tube

WU Linhua, LE Guigao, ZHANG Zhendong, ZHANG Qi

(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094,China)

Abstract: In terms of the shortcomings of the existing research on the compression load and energy absorption characteristics of composites, glass fiber honeycomb tube structures with different wall thickness and different cell number were proposed, and the static compression tests were carried out by universal testing machine. The results show that the main failure form of honeycomb tube with thin wall thickness is fiber fracture, the main failure forms of honeycomb tube with thick wall thickness are fiber fracture damage and fiber layer delamination. The peak compression load and total energy absorption increase with the cell number and wall thickness, and the specific energy absorption increases only with the wall thickness. The minimum compression peak load of single-cell honeycomb tube with wall thickness of 04 mm is 211 kN, the corresponding total energy absorption is 239 J and the specific energy absorption is 796 J·g-1. The maximum compression peak load of 8-cell honeycomb tube with wall thickness of 08 mm is 531 kN, and the corresponding total energy absorption is 1 3536 J and specific energy absorption is 3688 J·g-1.

Key words: glass fiber honeycomb tube; static compression tests; failure mode; compression peak load; specific energy absorption

收稿日期： 2022-05-01

基金项目： 国家自然科学基金青年科学基金项目(A020602)；国家自然科学基金项目（11902160）.

作者简介： 吴林华(1994—)，男，硕士研究生.*通信联系人.