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Volume 33 Issue 4
Jul 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(4): 044203.
WU Qijian, ZHI Xudong. Strain Rate Effect of GFRP-Reinforced Circular Steel Tube under Low-Velocity Impact[J]. Chinese Journal of High Pressure Physics, 2019, 33(4): 044203. doi: 10.11858/gywlxb.20180653
Citation: WU Qijian, ZHI Xudong. Strain Rate Effect of GFRP-Reinforced Circular Steel Tube under Low-Velocity Impact[J]. Chinese Journal of High Pressure Physics, 2019, 33(4): 044203. doi: 10.11858/gywlxb.20180653
shu

Strain Rate Effect of GFRP-Reinforced Circular Steel Tube under Low-Velocity Impact

doi: 10.11858/gywlxb.20180653
  • 1.

    Key Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, China

  • 2.

    Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China

  • Received Date: 16 Oct 2018
  • Rev Recd Date: 06 Nov 2018
    Abstract
  • This paper discussed the strain rate effect of glass fiber/epoxy resin composite (GFRP)-reinforced Q235 circular steel tube under low-velocity impact load. Firstly, the responses (axial load and displacement) of GFRP-reinforced steel tube under quasi-static and low-velocity impact load were obtained through axial compression tests and low-velocity impact tests respectively, which provided gist for the subsequent simulation. Secondly, a VUMAT subroutine considered initial failure modes, damage evolution and strain rate effect of GFRP was introduced; then the axial compression and low-velocity impact processes were simulated. Finally, the results under 4 situations (ignoring strain rate effect, considering the strain rate effect of steel tube, considering the strain rate effect of GFRP and considering the strain rate effect of both steel tube and GFRP) was compared using simulation.

     

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