Prediction of Elastic Constants of the Fuzzy Fibre Reinforced Polymer Using Computational Micromechanics

International Conference on Smart Engineering Materials 2018

Pawlik, Marzena^1 ; Lu, Yiling^1

Department of Mechanical Engineering and the Built Environment, University of Derby, Derby, United Kingdom^1

关键词: Carbon fibre reinforced polymer;    Computational micromechanics;    Fibre reinforced polymers;    Fibre volume fraction;    Numerical predictions;    Representative volume element (RVE);    Transverse mechanical properties;    Transversely isotropic;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/362/1/012006/pdf
DOI  :  10.1088/1757-899X/362/1/012006

来源: IOP

【 摘 要 】

Computational micromechanics is a useful tool to predict properties of carbon fibre reinforced polymers. In this paper, a representative volume element (RVE) is used to investigate a fuzzy fibre reinforced polymer. The fuzzy fibre results from the introduction of nanofillers in the fibre surface. The composite being studied contains three phases, namely: the T650 carbon fibre, the carbon nanotubes (CNTs) reinforced interphase and the epoxy resin EPIKOTE 862. CNTs are radially grown on the surface of the carbon fibre, and thus resultant interphase composed of nanotubes and matrix is transversely isotropic. Transversely isotropic properties of the interphase are numerically implemented in the ANSYS FEM software using element orientation command. Obtained numerical predictions are compared with the available analytical models. It is found that the CNTs interphase significantly increased the transverse mechanical properties of the fuzzy fibre reinforced polymer. This extent of enhancement changes monotonically with the carbon fibre volume fraction. This RVE model enables to investigate different orientation of CNTs in the fuzzy fibre model.