超高强钢弹侵彻陶瓷复合靶数值模拟研究
PDF下载 (217)赵永青,余毅磊,高光发,王永刚,蒋招绣.超高强钢弹侵彻陶瓷复合靶数值模拟研究[J].宁波大学学报(理工版),2025,38(1):54-62.DOI:10.20098/j.cnki.1001-5132.2024.0136
ZHAO Yongqing,YU Yilei,GAO Guangfa,WANG Yonggang,JIANG Zhaoxiu.Numerical simulation study on penetrating ceramic composite target by ultra-high strength steel bullets[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(1):54-62.DOI:10.20098/j.cnki.1001-5132.2024.0136
| Title: | Numerical simulation study on penetrating ceramic composite target by ultra-high strength steel bullets |
| 作者: | 赵永青, 余毅磊, 高光发, 王永刚, 蒋招绣 |
| Author(s): | ZHAO Yongqing, YU Yilei, GAO Guangfa, WANG Yonggang, JIANG Zhaoxiu |
| 关键词: | 侵彻; 超高强度钢; 断裂模型; 陶瓷复合装甲 |
| Keywords: | penetration; ultra-high strength steel; fracture model; ceramic composite armor |
| 分类号: | TJ012.4 |
| DOI: | 10.20098/j.cnki.1001-5132.2024.0136 |
| 文献标识码: | A |
| 摘要: | 穿甲动能弹通常以硬钢作为弹芯材料, 为此针对超高强钢材料进行了不同应变率与应力状态的力学特性实验, 构建了超高强钢弹体的本构与损伤模型, 并将模型嵌入到LS-DYNA商用软件中, 分别采用有限元法(Finite Element Method, FEM)、光滑粒子流体动力学(Smooth Particle Hydrodynamics, SPH)和光滑粒子伽辽金(Smooth Particle Galerkin, SPG)算法对钢弹侵彻陶瓷复合靶行为进行模拟, 探索不同算法对模拟结果的影响. 结果表明: (1)建立的材料模型和3种算法均能实现钢脆性弹芯侵彻陶瓷复合靶板的模拟. (2)受FEM质量损失不守恒的影响, 弹体未形成飞溅的碎块, 弹体侵彻能力集中强化, 计算获得弹体的剩余弹体速度与质量均高于SPH和SPG算法; SPH算法存在拉伸不稳定的问题, 模拟过程的弹芯质量侵蚀加剧, 获得终态剩余弹体质量最小, 陶瓷靶体损伤程度最大. (3)SPG算法弥补了前2种算法的问题, 能够更精确地模拟弹体的剩余质量. |
| Abstract: | Armor-piercing kinetic energy projectiles typically use hardened steel as the core material. This paper presents mechanical property experiments conducted on ultra-high-strength steel materials with various strain rates and stress states. Constitutive and damage models for ultra-high-strength steel projectiles were developed based on these experiments and integrated into LS-DYNA commercial software. Finite Element Method (FEM), Smooth Particle Hydrodynamics (SPH), and Smooth Particle Galerkin (SPG) algorithms were used to simulate the behavior of steel projectiles penetrating ceramic composite targets, with which the influences of different algorithms on simulation results were explored. The results indicate: (1) The established material models and three algorithms can all simulate the penetration of brittle steel cores into ceramic composite targets. (2) Due to the non-conservation of mass loss in FEM, the projectiles failed to form splintered fragments, leading to a concentrated enhancement in penetration capability. The calculated velocity and mass of the residual projectile obtained by FEM were both higher than those obtained by the SPH and SPG methods. However, the SPH method exhibited instability in tension, exacerbating core mass erosion during the simulation process, resulting in the smallest mass of the final residual projectile and the greatest damage to the ceramic target. (3) The SPG algorithm addressed the issues of the SPH and SPG methods, thus more accurately simulated the residual projectile mass. |
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| 备注/Memo: | 收稿日期: 2024−01−25. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金（12102213, 11972202）. 第一作者: 赵永青, 硕士研究生, 主要研究方向: 冲击动力学. E-mail: 1518642998@qq.com *通信作者: 蒋招绣, 助理研究员, 主要研究方向: 冲击动力学. E-mail: jiangzhaoxiu@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
