Welcome to Acta Armamentarii ! Today is Share:

Acta Armamentarii ›› 2022, Vol. 43 ›› Issue (5): 1185-1193.doi: 10.12382/bgxb.2021.0231

• Paper • Previous Articles     Next Articles

Quasi-static Compression Responseof Multicellular Structures with Carbon Fiber Reinforced Epoxy Composite Tubes

ZHANG Zhendong1, WANG Xueqin1, REN Jie1, LIU Zheng1, GAO Yuan2, WANG Xi3   

  1. (1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;2.Rocket Army Academy, Beijing 100089, China;3.Beijing Institute of Space Launching Technology, Beijing 100076, China)
  • Online:2022-03-17

Abstract: The multicellular structures made of fiber reinforced composites have excellent energy absorption characteristics,and have a broad application prospect in the field of energy dissipation and buffering. In order to simplify the manufacturing process,carbon fiber reinforced epoxy resin composite(CFRP) circular tubes are bonded together with epoxy resin adhesive to form multicellular structures with CFRP tubes (MSCT). The compression failure mode and energy dissipation characteristics of MSCT are analyzed through quasi-static compression test. The results show that MSCT present progressive compression failure,but the bonding surface will crack when the wall thickness of CFRP tube is greater than 0.5 mm;because the adjacent CFRP tubes hinder the expansion of the fiber bundle,the compression load increases,which makes the actual average load of MSCT higher than the theoretical average load,and causes the actual energy absorption higher than the theoretical energy absorption。Compared with a single CFRP tube,the performance of MSCT is better. The maximum specific energy absorption is 82 J/g,and the increment ratio of maximum specific energy absorption is 37.9%.

Key words: carbonfiberreinforcedepoxyresincompositetube, multi-cellstructure, quasi-staticcompressiontest, failuremode, energyabsorptioncharacteristics

CLC Number: