3D printing and modelling of continuous carbon fibre reinforced composite grids with enhanced shear modulus

Chen, Yuan1; Klingler, Andreas2; Fu, Kunkun3; Ye, Lin1

2023-07-01

10.1016/j.engstruct.2023.116165

ENGINEERING STRUCTURES   影响因子和分区

0141-0296

1873-7323

Within this research, continuous carbon fibre (CCF) reinforced polyamide (PA) composite grids were topologically-tailored and 3D printed to show enhanced shear modulus. Based on the 3D printing trajectories, a new numerical scheme to predict the elastic responses and behaviours of the 3D printed CCF/PA composite grids was developed. To verify the design and the numerical model, specifically created shearing tests were performed. By comparison, the modelled data agrees well with the experiments. Reinforced by CCFs, the effective shear modulus of 3D printed PA specimens was found to increase by 641.3%, 437.6% and 723% for basic structural configurations with material volume fractions of 20 vol-%, 40 vol-% and 60 vol-%, respectively. Even more, an index for evaluating the CCF reinforcement efficiency, independent of the design of the reinforced structure, was proposed and applied, indicating that the effective shear modulus can be maximally enhanced by 40.5 MP once the CCF volume content is increased by 1%. This study innovatively provides a systematic approach by inte-grating topological design, modelling and experimental methods for creating engineering grid structures with enhanced shear modulus, and thus proving the efficiency of using continuous fibres as structural reinforcements in 3D printing for engineering applications.

3D printing Continuous carbon fibre Shear modulus Grid Modelling

SCI ; EI

英语

第一 ; 通讯

Guangdong University Young Innovative Talent Project[2022KQNCX069] ; National Key Research & Development Program of China[2022YFB3706501] ; Scientific Research Start-up Funds from Southern University of Science and Technology["Y01966113","Y01966213"]

Engineering

Engineering, Civil

WOS:000988996000001

ELSEVIER SCI LTD

20231713952348

3D modeling ; 3D printing ; Carbon fibers ; Efficiency ; Fiber reinforced plastics ; Shear strain ; Structural design ; Topology

Structural Design, General:408.1 ; Data Processing and Image Processing:723.2 ; Printing Equipment:745.1.1 ; Chemical Products Generally:804 ; Production Engineering:913.1 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4 ; Mechanics:931.1 ; Materials Science:951

ENGINEERING

Web of Science

1.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg SDIM, Shenzhen 518055, Peoples R China
2.Leibniz Inst Verbundwerkstoffe IVW, Kaiserslautern, Germany
3.Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China

Chen, Yuan,Klingler, Andreas,Fu, Kunkun,et al. 3D printing and modelling of continuous carbon fibre reinforced composite grids with enhanced shear modulus[J]. ENGINEERING STRUCTURES,2023,286.

Chen, Yuan,Klingler, Andreas,Fu, Kunkun,&Ye, Lin.(2023).3D printing and modelling of continuous carbon fibre reinforced composite grids with enhanced shear modulus.ENGINEERING STRUCTURES,286.

Chen, Yuan,et al."3D printing and modelling of continuous carbon fibre reinforced composite grids with enhanced shear modulus".ENGINEERING STRUCTURES 286(2023).