High-velocity impact performance of aluminum and B4C/UHMW-PE composite plate for multi-wall shielding

Yangyu Lu, Qingming Zhang*, Yijiang Xue, Wenjin Liu, Renrong Long

*Corresponding author for this work

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Abstract

Three types of multi-wall shielding were experimentally investigated for their performances under the high-velocity impact of a cm-size cylindrical projectile by using a two-stage light-gas gun. The three shields contained the same two aluminum bumpers but different rear walls, which were 7075-T651 aluminum (Al) plate, boron carbide (B4C)/Al 7075-T651/Kevlar composite plate and B4C/ultra-high molecular weight polyethylene (UHMW-PE) composite plate. The impact test was carried out using a cylindrical shape of 6 g mass 7075-T651 Al projectile in a speed range (1.6 to 1.9 km/s) to achieve an effective shield configuration. A numerical simulation was undertaken by using ANSYS Autodyn-3D and the results of this were in good agreement with the experimental results. Meanwhile, both the experimental and the numerical simulation results indicated that B4C/UHMW-PE composite plates performed a better interception of the high-velocity projectiles within the specific speed range and could be considered as a good configuration for intercepting large fragments in shielding design.

Original languageEnglish
Article number721
JournalApplied Sciences (Switzerland)
Volume10
Issue number2
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • Composite plate
  • Cylindrical projectile
  • High-velocity impact
  • Multi-wall shielding

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Lu, Y., Zhang, Q., Xue, Y., Liu, W., & Long, R. (2020). High-velocity impact performance of aluminum and B4C/UHMW-PE composite plate for multi-wall shielding. Applied Sciences (Switzerland), 10(2), Article 721. https://doi.org/10.3390/app10020721