摘要
本文对六边形薄壁金属Al管、复合材料管和Al-复材混杂管进行准静态压缩实验,并结合有限元方法建模分析。实验结果表明,六边形薄壁管在准静态压缩下有稳定的失效破坏模式,Al-复合材料混杂管的比吸能相比Al管、复合材料管分别提高了42.6%和23.9%,混杂管的总吸能比Al、复合材料管单独实验之和增加了36.4%。通过对六边形薄壁管压缩实验的仿真分析,得到的载荷位移曲线和总吸能与实验结果对比较好。证明了混杂管的外层复合材料约束了内层金属的径向变形,从而提高了比吸能和总吸能量。
In this paper,quasi-static axial compression experiments are performed on hexagonal thin-walled metal Al pipes,composite pipes and Al-composite hybrid pipes,and the finite element method is used for modeling and analysis.The experimental results show that the hexagonal thin-walled tube has a stable failure mode under quasi-static compression.The specific energy absorption of the Al-composite hybrid tube is 42.6%and 23.9%higher than that of the Al-composite tube and the composite tube,respectively.The total energy absorption of the tube is 36.4%higher than the sum of the Al and composite tube experiments.Through the simulation analysis of the compression experiment of the hexagonal thin-walled tube,the obtained load displacement curve and the total energy absorption curve are compared with the experimental results.It is proved that the outer composite material of the hybrid tube restrains the radial deformation of the inner metal,thereby increasing the specific energy absorption and total energy absorption.
作者
梁钒
陈东方
武海鹏
周骐
宋显刚
田爱琴
LIANG Fan;CHEN Dongfang;WU Haipeng;ZHOU Qi;SONG Xiangang;TIAN Aiqin(Harbin FRP Institute Co.,Ltd.,Harbin 150028;CRRC Qingdao Sifang Co.,Ltd.,Qingdao 266311)
出处
《纤维复合材料》
CAS
2022年第2期57-63,共7页
Fiber Composites
关键词
六边形薄壁管
有限元
吸能
准静态压缩
hexagonal thin-walled tube
finite element
energy absorbing
quasi-static compression
作者简介
通讯作者:武海鹏,男,教授级高工。研究方向为复合材料结构设计与仿真。E-mail:wu_effort@163.com。
