A Modified Jones Mass Loss Model Considering the Projectile Material Hardness and Validation via High-speed Penetration of AerMet100 Projectiles

Haijun WU; Kehui WANG; Ming LI; Hui YANG; Zikai SHEN; Xianghui DAI; Weiguang WANG; Yuping ZHANG; Gang ZHOU

doi:10.12382/bgxb.2025.0741

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A Modified Jones Mass Loss Model Considering the Projectile Material Hardness and Validation via High-speed Penetration of AerMet100 Projectiles

更新时间：2026-02-10

- A Modified Jones Mass Loss Model Considering the Projectile Material Hardness and Validation via High-speed Penetration of AerMet100 Projectiles
- Acta Armamentarii Vol. 46, Issue S2, Pages: 250741(2025)
- 作者机构：
  
  西北核技术研究所, 陕西西安 710024
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.0741
  CLC：
- Received：15 August 2025，
  
  Online First：03 February 2026，
  
  Published：2025
- 稿件说明：
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Haijun WU, Kehui WANG, Ming LI, et al. A Modified Jones Mass Loss Model Considering the Projectile Material Hardness and Validation via High-speed Penetration of AerMet100 Projectiles[J]. Acta Armamentarii, 2025, 46(S2): 250741.
DOI：

Haijun WU, Kehui WANG, Ming LI, et al. A Modified Jones Mass Loss Model Considering the Projectile Material Hardness and Validation via High-speed Penetration of AerMet100 Projectiles[J]. Acta Armamentarii, 2025, 46(S2): 250741. DOI： 10.12382/bgxb.2025.0741.

摘要

高速侵彻过程中弹体的质量损失显著影响侵彻能力

现有质量损失模型未充分考虑弹体材料硬度的影响。采用Silling经验公式分析大量高速侵彻弹体质量损失实验数据

指出混凝土骨料硬度和弹体材料硬度是影响弹体质量损失的重要因素

而弹体材料硬度对弹体质量损失的影响较混凝土骨料硬度更大

拟合得到弹体材料硬度对弹体质量损失的影响规律。在Jones质量损失模型中引入混凝土骨料硬度修正系数

和弹体材料硬度修正系数

修正模型的弹体质量损失计算结果与不同弹靶组合的实验结果均能吻合较好。采用二级轻气炮开展1200~2200m/s速度范围的AerMet100弹体高速侵彻实验

获取不同速度下的无量纲侵深和质量损失

进一步验证修正模型对更高硬度弹体、更高侵彻速度情况的有效性。实验发现AerMet100弹体相对于其他材料具有更高的极限侵彻深度和更低的质量损失率

表明提高弹体材料硬度能够减小弹体侵蚀程度

提高高速侵彻能力。

Abstract

The significant mass loss of projectile during high-speed penetration has a significant affect on penetration capability.However

the existing mass-loss models fail to adequately take into account the influence of projectile material hardness.A large amount of experimental data on the mass loss of projectiles during high-speed penetration is analyzed using the Silling empirical relationship.It is found that the hardnesses of concrete aggregates and projectile materials are the important factors

affecting the mass loss of projectiles.The influence of the hardness of projectile material on the mass loss of projectile is greater than that of the hardness of concrete aggregates.The influence law of projectile material hardness on the mass loss is is obtained through fitting.The hardness correction coefficient

of concrete aggregate and the correction coefficient

of projectile material hardness are introduced in the Jones model.The calculated results of the modified model are in good agreement with the experimental results of different projectile-target combinations.Then

a two-stage light gas gun is used to conduct the high-speed penetration experiments of AerMet100 projectile in the speed range of 1200-2200m/s.The dimensionless penetration depth and mass loss at different penetration speeds are obtained to further verify the effectiveness of the modified model under the conditions of higher hardness projectile and higher penetration speeds.Meanwhile

it is found that the AerMet100 projectile has a higher penetration depth and lower mass loss compared to other materials

indicating that the hardness of projectile material can be increased to reduce the degree of projectile erosion and improve the high-speed penetration ability.

关键词

Keywords

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