| 引用本文: | 刘闯,张先锋,黄长强,等.金属靶体材料动力硬度测试及动态阻力分析.[J].国防科技大学学报,2020,42(1):162-169.[点击复制] |
| LIU Chuang,ZHANG Xianfeng,HUANG Changqiang,et al.Analysis of dynamic resistance and dynamic hardness test of metal target material[J].Journal of National University of Defense Technology,2020,42(1):162-169[点击复制] |
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| 金属靶体材料动力硬度测试及动态阻力分析 |
| 刘闯1,张先锋1,黄长强2,丁力1,陈海华1,王季鹏1 |
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(1. 南京理工大学 机械工程学院, 江苏 南京 210094;2. 空军工程大学 航空航天工程学院, 陕西 西安 710038)
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| 摘要: |
| 以高速侵彻下45钢靶体侵彻阻力为研究对象,开展了弹体高速侵彻45钢靶体试验,获取了典型弹体对45钢靶体的成坑参数。基于高速侵彻阻力模型对靶体侵彻阻力及影响因素进行分析。结合流体动力学侵彻模型对不同弹体材料侵彻45钢靶体侵彻深度规律进行研究。研究结果表明:随着撞击速度的增大,45钢的靶体阻力从5.13 GPa减小到3.7 GPa；基于材料动力硬度测试方法的靶体动态阻力测试结果和理论计算结果吻合较好；随着靶体动态屈服强度的增大,靶体阻力呈线性增大的趋势；侵彻深度及靶体动态阻力理论计算结果和试验数据吻合较好,说明所提动态阻力确定方法可行,可为高速侵彻动力学研究提供参考。 |
| 关键词: 爆炸力学 高速侵彻 侵彻阻力 A-T模型 流体动力学 |
| DOI：10.11887/j.cn.202001023 |
| 投稿日期：2018-09-28 |
| 基金项目:国家自然科学基金资助项目(11790292)；国家自然科学基金委员会与中国工程物理研究院联合基金资助项目(U1730101)；江苏省研究生科研创新计划资助项目(KYCX18_0460) |
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| Analysis of dynamic resistance and dynamic hardness test of metal target material |
| LIU Chuang1, ZHANG Xianfeng1, HUANG Changqiang2, DING Li1, CHEN Haihua1, WANG Jipeng1 |
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(1. College of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2. College of Aeronautics and Astronautics Engineering, Air Force Engineering University, Xi′an 710038, China)
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| Abstract: |
| Experiments on 45 steel with high-velocity impact were carried out in order to study the target resistance. Then the influence of impact velocity and target parameters on the penetration resistance was analyzed by the calculation model. Also, the DOP (depth of penetration) of different projectiles penetrating 45 steel targets were studied based on the hydrodynamic penetration model. It was shown that the experimental results of penetration resistance based on the material dynamic hardness test method agrees well with the theoretical calculation results of hydrodynamic penetration model. Simultaneously, with the increase of impact velocity, the target resistance reduces from 5.13 GPa to 3.7 GPa. Also, the target resistance shows linear trend increase with the increase of the dynamic yield strength of targets. The DOP calculated by the hydrodynamic penetration model agrees well with the corresponding experimental data. All of these proved that the method to obtain dynamic resistance is feasible, thus can provide a reference for hypervelocity penetration dynamics research. |
| Keywords: mechanics of explosion hypervelocity penetration penetration resistance Alekseevskii-Tate model hydrodynamic theory of penetration |
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