The Simultaneous Multiple Impact Effect of Rigid Projectiles on an Aluminum Alloy Target

GAO Yueguang; KANG Yaowen; WU Siyu; LAN Xuke; FU Jianping

doi:10.12382/bgxb.2025.0890

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The Simultaneous Multiple Impact Effect of Rigid Projectiles on an Aluminum Alloy Target

更新时间：2026-07-06

- The Simultaneous Multiple Impact Effect of Rigid Projectiles on an Aluminum Alloy Target
- Acta Armamentarii Vol. 47, Issue 6, Pages: 250890(2026)
- 作者机构：
  
  中北大学机电工程学院，山西太原 030051
  中北大学毁伤国防重点学科与技术研究中心，山西太原 030051
  中国兵器工业集团航空弹药研究院有限公司，黑龙江哈尔滨 150001
  中国万宝工程有限公司，北京 100053
  北京理工大学重庆创新中心，重庆 401120
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.0890
  CLC： O347.3
- Received：28 September 2025，
  
  Online First：13 February 2026，
  
  Published：2026-06
- 稿件说明：
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GAO Yueguang, KANG Yaowen, WU Siyu, et al. The Simultaneous Multiple Impact Effect of Rigid Projectiles on an Aluminum Alloy Target[J]. Acta Armamentarii, 2026, 47(6): 250890.
DOI：

GAO Yueguang, KANG Yaowen, WU Siyu, et al. The Simultaneous Multiple Impact Effect of Rigid Projectiles on an Aluminum Alloy Target[J]. Acta Armamentarii, 2026, 47(6): 250890. DOI： 10.12382/bgxb.2025.0890.

摘要

多弹丸同时撞击目标时，弹靶相互作用过程及剩余速度与单弹丸撞击存在显著差异，单弹丸结论难以直接推广至多弹丸撞击场景，而现有关于多弹丸撞击的研究也多为定性分析。为揭示多弹丸撞击动态响应过程，以2024铝合金靶板为研究对象，基于试验验证的数值仿真模型，开展刚性多弹丸对铝合金靶同时多重撞击研究。研究结果表明，随撞击速度增加，靶板损伤由累积损伤过渡为叠加损伤，不同撞击速度对应的靶板累积损伤机制不同。撞击速度较高时，靶板损伤更易受弹丸个数的影响，随弹丸个数的增加，损伤由叠加损伤过渡为累积损伤，同时建立多弹丸平均剩余速度的理论公式，其平均相对误差为3.35%。研究成果可为多重撞击毁伤效应评估与防护结构优化设计提供理论依据。

Abstract

The interaction ptocess between projetiles and target and the residual velocities of projetiles when the multi-projectiles impact the target simultaneously are profoundly disparate from the singleprojectile case. As such

the single-projectile paradigm does not lend itself to direct extrapolation

and the existing studies on the multi-impact phenomenon remains largely qualitative analyses. To elucidate the dynamic response process and damage evolution mechanisms under multi-projectile impact

the simultaneous multiple impacts of rigid projectiles on 2024 aluminum alloy targets are investigated based on a numerical simulation model validated through experiment. The results indicate that the target damage transits from a cumulative damage to an additive damage as impact velocity increases. The mechanisms of cumulative damage effects vary under different impact velocities. The target damage becomes more susceptible to the number of projectiles at higher impact velocities. The damage shifts from an additive damage effect to a cumulative damage effect with the increase in the number of projectiles. Additionally

a theoretical formula is established for the average residual velocity of multiple projectiles with a mean relative error of 3.35% . The findings provide a theoretical basis for assessing the damage effects under multiple impacts and optimizing the protective structure design.

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