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Dynamic Fracture Toughness and Failure Mechanisms of ZnO Whiskers Secondary Reinforced Composites

  • 1School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081 2School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081

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  • Received Date: May 25, 2010
  • Published Date: July 31, 2010
    Abstract
  • Quasi-static and dynamic fracture properties and damage mechanism of glass fiber polymer composites embedded with different mass percentages of ZnO whiskers are investigated by using an Instron Testing machine and a Split-Hopkinson pressure bar. According to the experimental results and linear fracture mechanics, the quasi-static fracture toughness KIc and the dynamic fracture toughness KId under various impact velocities of specimens are obtained. Fracture mechanism is investigated by fractography analysis with a scanning electron microscope. The experimental results show that the mass percentage of ZnOw has little influence on the quasi-static fracture toughness, but a little influence on the dynamic fracture toughness and time of initial fracture point of specimens by the reason of various fracture mechanisms.
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    • References (20)
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    3. Lin, W., Fan, X., Zhao, L. et al. Metastable charge distribution between degenerate Landau levels. Physical Review B, 2024, 109(3): 035305. DOI:10.1103/PhysRevB.109.035305
    4. Huang, H., Hussain, W., Myers, S.A. et al. Density Dependence of the Phases of the v = 1 Integer Quantum Hall Plateau in Low Disorder Electron Gases. Physica Status Solidi - Rapid Research Letters, 2024. DOI:10.1002/pssr.202400376
    5. Zhao, L., Lin, W., Chung, Y.J. et al. Dynamic Response of Wigner Crystals. Physical Review Letters, 2023, 130(24): 246401. DOI:10.1103/PhysRevLett.130.246401
    6. Li, J.-K., Wang, H.-Z., Zhang, J.-Y. et al. Quantum capacitance properties of the holes in planar germanium. Applied Physics Letters, 2023, 122(6): 063102. DOI:10.1063/5.0137292

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