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<p>The dynamic mechanical behavior of ice is critical for designing hail-proof aerospace structures, as its compressive strength exhibits strong strain rate dependency. This study investigates the behavior of ice reinforced with varying cotton fiber content (0%, 3%, 6%, 9%, and 12%) under dynamic loading conditions using a Split Hopkinson Pressure Bar (SHPB) apparatus at strain rates ranging from 300/s to 4000/s. Experimental results demonstrate a positive correlation between cotton fiber content, strain rate, and compressive strength. Fiber-reinforced ice exhibits enhanced toughness and ductility compared to pure ice, with reinforced samples displaying three distinct deformation stages: linear elastic response, yield softening, and plateau region. These findings provide essential experimental data and a robust theoretical foundation for enhancing aerospace structures' resistance to hail impact damage.</p>

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Dynamic Mechanical Behavior of Ice Reinforced with Cotton Fiber for Hail Impact Simulation

  • 期刊论文

  • 发表日期：

    2025年9月4日

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  • X. Huang,
  • S. Kang

摘要

The dynamic mechanical behavior of ice is critical for designing hail-proof aerospace structures, as its compressive strength exhibits strong strain rate dependency. This study investigates the behavior of ice reinforced with varying cotton fiber content (0%, 3%, 6%, 9%, and 12%) under dynamic loading conditions using a Split Hopkinson Pressure Bar (SHPB) apparatus at strain rates ranging from 300/s to 4000/s. Experimental results demonstrate a positive correlation between cotton fiber content, strain rate, and compressive strength. Fiber-reinforced ice exhibits enhanced toughness and ductility compared to pure ice, with reinforced samples displaying three distinct deformation stages: linear elastic response, yield softening, and plateau region. These findings provide essential experimental data and a robust theoretical foundation for enhancing aerospace structures' resistance to hail impact damage.