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Acta Armamentarii ›› 2025, Vol. 46 ›› Issue (10): 250531-.doi: 10.12382/bgxb.2025.0531

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Ballistic Performance of Perforated Array Ceramic Armor Using FEM-SPH Adaptive Algorithm

HE Zhifan1,2, CHEN Tianming3, LU Chengfa1,2, YANG Yang3, LIANG Bo1,2, WANG Zhipeng1,2, CHEN Aijun4, CAO Jianwu5, QIN Qinghua1,2,*()   

  1. 1 Xi’an Key Laboratory of Extreme Environment and Protective Technology, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
    2 State Key Laboratory for Strength and Vibration of Mechanical Structures(Xi’an Jiaotong University), Xi’an 710049, Shaanxi, China
    3 Jiangxi Changjiang Chemical Co., Ltd, Jiujiang 332006, Jiangxi, China
    4 School of Physics, Nanjing University of Science and Technology, Nanjing 210014, Jiangsu, China
    5 College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • Received:2025-06-23 Online:2025-11-05
  • Contact: QIN Qinghua

Abstract:

The perforated array ceramic plate is a new type of protective armor. The projectiles are deflected by the asymmetric forces caused by the holes in the plates, reducing the stability and penetration ability of the projectiles. In this paper, FEM-SPH adaptive algorithm was used to model the penetration of a 7.62mm armor-piercing incendiary projectile into a perforated array boron carbide ceramic target plate. The effects of impact points, angles, and projectile rotation on the ballistic performance of the perforated array ceramic plate were analyzed. It is shown that the impact points have significant influence on the projectile-target interaction, the failure mode and the ballistic performance of the perforated array ceramic plate. The active failure mode of the projectile for the impact point located at the hole edge is deflected due to asymmetric forces, resulting in the enhancement of the ballistic performance of the plate. For the oblique impact, the projectile stability is further reduced by the plate, giving rise to the enhancement of the ballistic performance and expansion of the damage area on the plate. Comparing to non-rotating projectiles, the plate has greater advantages against the rotating projectiles.

Key words: perforated array armor, B4C ceramic, penetration, FEM-SPH adaptive algorithm, ballistic performance