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<p>The performance of ceramic seams in spliced ceramic composite armors primarily depends on the properties of the adhesive layer. This study presents a sophisticated 3D finite element (FE) model developed to simulate the ballistic impact process. The primary objective was to enhance the penetration resistance of ceramic composite armor in vulnerable regions by modifying the bonding parameters between the ceramic chips. The results demonstrated that with an adhesive density of 2.0&#xa0;g/cm<sup>3</sup>, the absorbed energy of the armor and the ballistic limit velocity were 3553.6&#xa0;J and 391.2&#xa0;m/s, respectively, reflecting increases of 48.1 and 22.1% compared to the density of 1.2&#xa0;g/cm<sup>3</sup>. The increase in adhesive density effectively mitigates damage caused by stress at the ceramic edges, prevents a reduction in the stiffness of the ceramic plate due to adhesive failure, and enhances the impact resistance of the armor in the weaker areas at the edges of the ceramic. Conversely, the influence of adhesive strength on the ballistic performance of ceramic composite armor is minimal.</p>

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Influence of Adhesive Layer on Penetration Resistance of Ceramic Composite Armor

  • 期刊论文

  • 发表日期：

    2025年2月10日

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  • Shuai Yang,
  • Siyang Liu,
  • Xuhai Xiong,
  • Xinyang Li,
  • Yuhao Wang,
  • Rong Ren,
  • Jing Wang,
  • Nianjun Kang

摘要

The performance of ceramic seams in spliced ceramic composite armors primarily depends on the properties of the adhesive layer. This study presents a sophisticated 3D finite element (FE) model developed to simulate the ballistic impact process. The primary objective was to enhance the penetration resistance of ceramic composite armor in vulnerable regions by modifying the bonding parameters between the ceramic chips. The results demonstrated that with an adhesive density of 2.0 g/cm3, the absorbed energy of the armor and the ballistic limit velocity were 3553.6 J and 391.2 m/s, respectively, reflecting increases of 48.1 and 22.1% compared to the density of 1.2 g/cm3. The increase in adhesive density effectively mitigates damage caused by stress at the ceramic edges, prevents a reduction in the stiffness of the ceramic plate due to adhesive failure, and enhances the impact resistance of the armor in the weaker areas at the edges of the ceramic. Conversely, the influence of adhesive strength on the ballistic performance of ceramic composite armor is minimal.