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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2019> 28(4): 707-714
Hua Chen, Dewu Wang, Yuanji He, Lirong Cheng, Wenhui Tang, Xianwen Ran. Characteristics of Polyimide Debris Clouds Produced by Hypervelocity Impact[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(4): 707-714. doi: 10.15918/j.jbit1004-0579.18128
Citation: Hua Chen, Dewu Wang, Yuanji He, Lirong Cheng, Wenhui Tang, Xianwen Ran. Characteristics of Polyimide Debris Clouds Produced by Hypervelocity Impact[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(4): 707-714.doi:10.15918/j.jbit1004-0579.18128
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Characteristics of Polyimide Debris Clouds Produced by Hypervelocity Impact

doi:10.15918/j.jbit1004-0579.18128
  • 1.

    96901 Unit, People's Liberation Army, Beijing 100094, China

  • 2.

    College of Art and Science, National University of Defense Technology, Changsha 410073, China

  • Received Date:2018-06-24
    Abstract
  • Polyimide is a typical complex high-molecular polymer of imide monomers, which is widely used in the manufacture of parts for aerospace engineering. The hypervelocity impacts between the spacecraft and orbital debris can induce great damage to the spacecraft. In order to improve the safety of spacecraft, the characteristics of polyimide debris clouds produced by hypervelocity impact should be studied. Firstly, a Mie-Grüneisen equation of state based on the shock adiabat for polyimide, which describes the mechanical behavior in the numerical simulation, was obtained from hypervelocity impact experiments, then a 3-dimentional smoothed particle hydrodynamics program was compiled to numerically simulate the hypervelocity impact between aluminum projectiles (orbital debris) and polyimide targets with different impact velocities (3.km/s, 5.km/s, 8.km/s) and angles (0°, 30°, 45°, 60°), finally typical shapes of debris clouds produced in different impact velocities and angles were collected from simulation results, the characteristics of which were systemically discussed.
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    • References (15)
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