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Volume 32 Issue 6
Dec 2018
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Chinese Journal of High Pressure Physics  > 2018  >  32(6): 064101.
SONG Lubin, GUO Zhangxin, LI Zhonggui, LUAN Yunbo, ZHAO Dan, ZHANG Qi. Effect of Defective Graphene on Mechanical Properties of Reinforced Resin Matrix Composites[J]. Chinese Journal of High Pressure Physics, 2018, 32(6): 064101. doi: 10.11858/gywlxb.20180586
Citation: SONG Lubin, GUO Zhangxin, LI Zhonggui, LUAN Yunbo, ZHAO Dan, ZHANG Qi. Effect of Defective Graphene on Mechanical Properties of Reinforced Resin Matrix Composites[J]. Chinese Journal of High Pressure Physics, 2018, 32(6): 064101. doi: 10.11858/gywlxb.20180586
shu

Effect of Defective Graphene on Mechanical Properties of Reinforced Resin Matrix Composites

doi: 10.11858/gywlxb.20180586
  • 1.

    College of Mechanics, Shanxi Key Laboratory of Material Strength & Structure Impact, Taiyuan University of Technology, Taiyuan 030024, China

  • 2.

    State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China

  • Received Date: 20 Jun 2018
  • Rev Recd Date: 06 Jul 2018
    Abstract
  • Based on the molecular structural mechanics and multi-scale method, the finite element model of graphene reinforced epoxy resin composite with different number of vacancy defects and Stone-Wales (S-W) defects was constructed by using the finite element commercial software ABAQUS.The effects of graphene defects on the elastic modulus and interfacial stress transfer of composites with different volume fractions of graphene were investigated.The numerical simulation results show that the elastic modulus of the perfect graphene and the defective graphene reinforced epoxy resin composite increases linearly with the increase of the volume fraction of graphene.Secondly, the comparison between the number of defects and the type of defects shows that the vacancy defect can obviously reduce the modulus of elasticity of the composite, and the change is more obvious with the increase of the number of defects.However, the S-W defect increases the Young's modulus of the composites to a certain extent, but the shear modulus decreases.In addition, the stress transfer from the interface layer to some extent reflects the effect of defects on the composites.

     

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