摘要
以卫星天线支撑结构中的薄壁碳纤维管作为研究对象,针对管在运输、装配等过程中容易发生低能冲击产生的不可见的分层损伤,研究含有损伤的薄壁碳纤维管的抗损伤性能.采用ABAQUS实体单元建立了含有分层损伤的薄壁碳纤维管的有限元模型,通过低能横向冲击实验对有限元模型进行了验证.考虑管的实际工况,研究纤维取向和分层位置对管的抗压缩性能的影响,以及分层损伤对二次横向冲击的影响.结果表明,纤维取向越接近轴向,分层损伤对管的抗压缩性能的影响越小.只有在损伤位置处,管的抗横向冲击损伤性能才会下降.
Taking the thin-walled carbon fiber tubes in the support structure of satellite antennas as the research object,the damage resistance of thin-walled carbon fiber tubes with damage was investigated with respect to the invisible delamination damage generated by low-energy impacts that are prone to occur in the process of tube transporting and assembling.A finite element model of a thin-walled carbon fiber tube with delamination damage was developed using ABAQUS solid units,and the finite element model was validated by low-energy transverse impact experiments.Considering the actual working conditions of the tube,the effects of fiber orientation and delamination position on the compressive properties of the tube and the effect of delamination damage on the secondary transverse impact were investigated.The results showed that the closer the fiber orientation is to the axial direction,the smaller the effect of delamination damage on the compressive properties of the tube.The resistance of the tube to transverse impact damage decreases only in the position of the damage.
作者
罗忠
孙新宇
于冰
张承双
LUO Zhong;SUN Xin-yu;YU Bing;ZHANG Cheng-shuang(School of Mechanical Engineering&Automation,Northeastern University,Shenyang 110819,China;Key Laboratory of Vibration and Control of Aero-Propulsion Systems,Ministry of Education,Northeastern University,Shenyang 110819,China;Foshan Graduate School of Innovation,Northeastern University,Foshan 528312,China;Xi’an Aerospace Composites Research Institute,Xi’an 710025,China)
出处
《东北大学学报(自然科学版)》
北大核心
2025年第5期80-86,共7页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(12272089,U1908217)
中央高校基本科研业务费专项资金资助项目(N2224001-4,N2003013,N2303002)
航天复合材料重点实验室开放基金资助项目(2022JX04H014)。
关键词
薄壁碳纤维管
分层损伤
轴向压缩
纤维取向
横向冲击
thin-walled carbon fiber tube
delamination damage
axial compression
fiber orientation
transverse impact
作者简介
罗忠(1978-),男,内蒙古集宁人,东北大学教授,博士生导师.E-mail:zhluo@mail.neu.edu.cn。
