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兵工学报 ›› 2025, Vol. 46 ›› Issue (9): 240807-.doi: 10.12382/bgxb.2024.0807

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陶瓷/纤维防弹板在多发冲击下能量耗散和损伤评估

霍子怡1, 何成龙1,2,*(), 贾松1, 杨可谞1, 毛翔1, 黄治镡1, 蒲彦蓉1   

  1. 1 中北大学 机电工程学院, 山西 太原 030051
    2 中北大学 高端装备可靠性技术山西省重点实验室, 山西 太原 030051
  • 收稿日期:2024-09-06 上线日期:2025-09-24
  • 通讯作者:
  • 基金资助:
    山西省基础研究计划项目(20210302124197); 博士后科学基金项目(2021M702981)

Energy Dissipation and Damage Assessment of Ceramic/fiber Ballistic Plate under Multi-impacts

HUO Ziyi1, HE Chenglong1,2,*(), JIA Song1, YANG Kexu1, MAO Xiang1, HUANG Zhixin1, PU Yanrong1   

  1. 1 School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, China
    2 Shanxi Provincial Key Laboratory of High-end Equipment Reliability Technology, North University of China, Taiyuan 030051, Shanxi, China
  • Received:2024-09-06 Online:2025-09-24

摘要:

陶瓷/纤维防弹板广泛应用于单兵防护装备,研究其抗多发冲击性能对于减少士兵伤亡有重要意义。以Al2O3/超高分子量聚乙烯拼接防弹板为研究对象,针对弹着点不同位置开展了数值模拟,并与实验结果进行对比分析,验证数值模拟结果的可靠性。基于陶瓷和纤维破坏结果得出防弹板吸能与损伤特征的关系,有效计算下一次冲击的穿透概率。研究结果表明:第1发弹着点位于陶瓷片中心、两片接缝或四角拼接时,防弹板的破坏模式大致相同,接缝处陶瓷层抗冲击性能降低;第1发弹着点位于陶瓷片中心时,第2发子弹在两片接缝处穿透防弹板;随着两发弹着点距离越近陶瓷层吸收的能量越少,纤维层吸收能量越多;两发弹着点位于平行相隔和对角相隔时,中间陶瓷片未产生宏观破坏;当第1发弹着点位于陶瓷片中心时,第2次冲击的穿透概率为1.04%;当前第1发弹着点位于陶瓷片中心时,第2次冲击分别位于水平相邻中心、四角拼接、对角相邻中心时,第3次冲击防弹板穿透概率分别为5.45%、7.35%、5.05%;该方法可快速评估受损装备的抗多发侵彻能。

关键词: 陶瓷/纤维防弹板, 弹着点, 多发冲击, 能量耗散, 损伤评估

Abstract:

The ceramic/fiber composite ballistic plates are widely used in personal protection equipment. Studying the performance of ballistic plate subjected to multi-impacts is of great significance for reducing the number of casualties in the battlefield.This paper investigates the Al2O3/UHMWPE composite ballistic plate,focusing on numerical simulations conducted for various bullet impact points.The reliability of the simulated results is validated by comparing with the experimental results.The relationship between the energy absorption and damage characteristics of the ballistic plate is derived from the ceramic and fiber damage results,and the penetration probability of the next impact is effectively calculated.The results indicate that the damage patterns of ballistic plates are roughly the same and the impact resistance of ceramic layer at the joint decreases.when the impact point of the first bullet is located at the center of a ceramic plate,within the gap between two plates,or at the gap of quadrilateral jointing.Specifically,when the impact point of the first bullet is located at the center of ceramic plate,the subsequent bullets tend to penetrate through the gap between adjacent plates.As the proximity between successive impacts decreases,the energy absorption by the ceramic layer diminishes while the energy absorbed by the fiber layer increases.When two impact points are located parallelly and diagonally apart,the middle ceramic plate does not suffer macroscopic damage due to the joint structure.When the first impact point is in the center of the ceramic plate,the penetration probability of the second impact is 1.04%.When the first impact point is in the center of the ceramic plate,and the second impact point is in the horizontal adjacent center,the four corners of the gap,or the diagonal adjacent center,the penetration probability of the third impact on the ballistic plate is 5.45%,7.35%,and 5.05%,respectively.This method can be used to quickly evaluate the resistance of damaged equipment to multiple penetrations.

Key words: ceramic/fiber ballistic plate, impact point, multi-impacts, energy dissipation, damage assessment

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