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北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081
Received:31 March 2023,
Published Online:12 January 2024,
Published:30 December 2023
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Guang REN, Haijun WU, Heng DONG, et al. Deformable Special-Shaped Projectile Impacting a High-strength Rock:Experiments and Analysis[J]. Acta Armamentarii, 2023, 44(12): 3793-3804.
Guang REN, Haijun WU, Heng DONG, et al. Deformable Special-Shaped Projectile Impacting a High-strength Rock:Experiments and Analysis[J]. Acta Armamentarii, 2023, 44(12): 3793-3804. DOI: 10.12382/bgxb.2023.0278.
发射弹体作为激励物破碎高强度岩石实现样品采集在近地小行星(NEA)取样方案中备受关注。为研究可变形异型弹体撞击高强度岩石的弹靶作用过程及岩石破碎机理
设计花瓣形贯穿式、花瓣形非贯穿式与圆卵形贯穿式3类弹体
基于57mm轻气炮和14.5mm弹道枪开展低速(71.4~280.0m/s)与高速(453.0~612.0m/s)撞击单轴抗压强度180MPa高强度玄武岩实验
获得不同构型和入射速度下弹体变形模式、反射速度及反射动能比、岩石破碎区直径、开坑深度及碎岩质量变化规律。实验结果表明:低速撞击下
两类花瓣形弹体的反射速度较圆卵形弹体降低了约21.9%~42.8%
且具有更低的反射动能比;高速撞击下
花瓣形非贯穿式弹体的弹靶作用过程为多点同步撞击与泰勒杆式撞击两段式过程
其碎岩质量约为花瓣形贯穿式弹体的3倍。研究结果为可变形异型弹体构型设计、高强度岩石破碎机理研究提供实验验证与研究思路。
Fracturing a high-strength rockto collect the fragment samples by the kinetic energy of deformable special-shaped projectile has attracted much attention in the Near-Earth Asteroid (NEA) sampling scheme. Three types of deformable special-shaped projectiles
i.e.
petal penetrating
petal non-penetrating and oval penetrating
are designed to study theprojectile-target interaction and rock fracture mechanism. Based on 57mm lightgas gun and 14.5mm ballistic gun
the low-speed (71.4-280.0m/s) and high-speed (453.0-612.0m/s) impact experiments are carried out for a rock with uniaxial compression strength of 180MPa to obtain the reflected velocity of projectile
mass of rock fragments
and diameter and depth of fracturing zone. Experimental results show that
in the low-speed impact experiments
two types of petal projectiles have lower reflected kinetic energy ratio and its reflection speed is reduced by 21.9%-42.8% compared to other projectiles; In the high-speed impact experiments
the projectile-target interaction of petal projectile is two-phase processes: multi-point simultaneous impact and Taylor rod impact
which increase the mass of fragments about three times than petal penetrating projectiles. The research inspires the designing of deformable special-shaped projectile and the comprehending of fracture mechanism of rocks under impact.
李谦 , 高辉 , 谢兰兰 , 等 . 月球钻探取样技术研究进展 [J ] . 钻探工程 , 2021 48 ( 1 ) 15 - 34 .
LI Q , GAO H , XIE L L , et al . Review of research about lunar drilling technology [J ] . Exploration Engineering , 2021 , 48 ( 1 ): 15 - 34 . (in Chinese)
SAWADA H , OKAKOZI R , TACHIBANA S , et al . Hayabusa2 sampler: collection of asteroidal surface material [J ] . Space Science Reviews , 2017 , 208 ( 1/2/3/4 ): 81 - 106 . DOI: 10.1007/s11214-017-0338-8 http://doi.org/10.1007/s11214-017-0338-8 http://link.springer.com/10.1007/s11214-017-0338-8 http://link.springer.com/10.1007/s11214-017-0338-8
SOVJÁK R , VAVŘINÍK T , ZATLOUKAL J , et al . Resistance of slim UHPFRC targets to projectile impact using in-service bullets [J ] . International Journal of Impact Engineering , 2015 , 76 : 166 - 177 . DOI: 10.1016/j.ijimpeng.2014.10.002 http://doi.org/10.1016/j.ijimpeng.2014.10.002 https://linkinghub.elsevier.com/retrieve/pii/S0734743X14002346 https://linkinghub.elsevier.com/retrieve/pii/S0734743X14002346
吕映庆 , 陈南勋 , 武海军 , 等 . 弹体高速侵彻超高性能混凝土靶机理 [J ] . 兵工学报 , 2022 , 43 ( 1 ): 37 - 47 DOI: 10.3969/j.issn.1000-1093.2022.01.005 http://doi.org/10.3969/j.issn.1000-1093.2022.01.005 为研究弹体高速侵彻超高性能混凝土的现象和规律,对钢纤维体积分量为1.0%的C120超高性能混凝土和钢纤维体积分量为2.5%的C160超高性能混凝土开展准静态单轴压缩试验、劈裂抗拉试验和弹体高速侵彻试验。采用修正的美国国防研究委员会(NDRC)经验公式和量纲分析得到的经验公式,对侵彻超高性能混凝土试验中的弹体侵彻深度进行计算分析。计算和试验结果表明:相比于普通混凝土,超高性能混凝土有着较高的拉压比和优越的抗靶体表面破坏的能力,试验后靶体的表面开坑面积较小,开坑直径大约为8~12倍弹径;向外沿径向产生的裂纹较小且短,平均裂纹数量为4条;随着超高性能混凝土的强度从120 MPa提高到160 MPa,靶体表面开坑直径减小,开坑深度降低,钢纤维的加入提高了靶体的韧性,从而降低了靶体的表面开坑直径;相比于普通混凝土,超高性能混凝土的侵彻深度较小,但随着超高性能混凝土靶体的强度从120 MPa提高到160 MPa,其 侵彻深度没有明显的下降;修正后的NDRC经验公式可以很好地预测弹体高速侵彻下超高性能混凝土的侵彻深度,利用量纲分析得到的侵彻深度公式可以为后续的试验预测提供参考。
LÜ Y Q , CHEN N X , WU H J , et al . Mechanism of high-velocity projectile penetrating into ultra-high performance concrete target [J ] Acta Armamentarii , 2022 , 43 ( 1 ): 37 - 47 . (in Chinese) DOI: 10.3969/j.issn.1000-1093.2022.01.005 http://doi.org/10.3969/j.issn.1000-1093.2022.01.005 Ultra-high performance concrete (UHPC) is widely used in the field of protection due to its ultra-high strength and durability. In order to study the phenomenon and laws of projectile penetrating into ultra-high performance concrete, the quasi-static uniaxial compression experiment, split tensile experiment and high-speed penetration experiment of projectile are made on C120 ultra-high performance concrete with 1 vol% steel fibers and C160 ultra-high performance concrete with 2.5 vol% steel fibers. The modified NDRC empirical formula and the empirical formula obtained from dimensional analysis are used to calculate the penetration depths of projectile in the experiments. The results show that the ultra-high performance concrete has a higher tensile-compression ratio and superior ability to resist surface damage of the target compared with ordinary concrete. The area of crater on the surface of target is small, and the crater diameter is about 8-12 times the projectile diameter. The cracks generated in the radial direction are small and short, and the average number of cracks is 4. With the increase in the strength of ultra-high performance concrete, the diameter of crater on the surface of target and the depth of crater decrease, indicating that the addition of steel fiber improves the toughness of the target and reduces the diameter of crater on the surface of target. As compared with ordinary concrete, the penetration depth of ultra-high performance concrete is smaller, but as the strength of target increases, the penetration depth does not decrease significantly. The modified NDRC empirical formula and the empirical formula obtained from dimensional analysis can be used to predict the penetration depth of ultra-high performance concrete under high-speed penetration of projectile.
张雪岩 , 武海军 , 李金柱 , 等 . 弹体高速侵彻两种强度混凝土靶的对比研究 [J ] . 兵工学报 , 2019 , 40 ( 2 ): 276 - 283 . DOI: 10.3969/j.issn.1000-1093.2019.02.007 http://doi.org/10.3969/j.issn.1000-1093.2019.02.007 随着武器系统打击能力的不断提升,高强度混凝土被越来越多地应用到防护设施中。为研究弹体侵彻高强度混凝土的现象和规律,进行了弹体高速侵彻C60高强度混凝土的试验,并与已开展的弹体高速侵彻C35普通强度混凝土试验结果进行对比。采用基于空腔膨胀理论的计算方法、经验侵彻公式法和节点回退法等方法对两组试验中的弹体侵彻深度、弹体侵蚀进行了分析。计算和试验结果表明:相比于弹体侵彻C35混凝土试验,相同速度下侵彻C60混凝土弹体的过载约为其1.8倍,侵彻深度为其52%;C60混凝土靶表面破坏更大,表明随着强度的提高混凝土脆性变大;在骨料切削影响条件相同情况下,侵彻C60混凝土弹体的侵蚀更大,表明高强度混凝土的砂浆对弹体侵蚀作用变大。
ZHANG X Y , WU H J , LI J Z , et al . Comparative study of projectiles penetrating into two kinds of concrete targets at high velocity [J ] . Acta Armamentarii , 2019 , 40 ( 2 ): 276 - 283 . (in Chinese) DOI: 10.3969/j.issn.1000-1093.2019.02.007 http://doi.org/10.3969/j.issn.1000-1093.2019.02.007 With the development of weapon systems, high strength concrete has been applied to the protection facilities. In order to study the phenomenon and law of projectile penetrating into high-strength concrete, the experiment of projectile penetrating into C60 high-strength concrete target is carried out, and the experimental results are compared with those of C35 normal strength concrete. The penetration depth and projectile erosion are analyzed by means of calculation method based on cavity expansion theory, empirical penetration formula method and nodes back-off method. The calculated and experimental results show that the overload of projectile penetrating into C60 concrete is 1.8 times of that of projectile penetrating into C35 concrete, and the penetration depth is 52%. The surface damage of C60 concrete target is greater, indicating that the brittleness of concrete gets larger with the increase of strength. The erosion of projectile penetrating into high strength concrete is more serious in the case of the same aggregate cutting conditions, indicating that the erosion effect of high-strength mortar gets larger. Key
尹放林 , 严少华 , 钱七虎 , 等 . 弹体侵彻深度计算公式对比研究 [J ] . 爆炸与冲击 , 2000 ( 1 ): 79 - 82 .
YIN F L , YAN S H , QIAN Q H , et al . Contrast analysis on calculation of penetration depth of projectile [J ] . Explosion and Shock Waves , 2000 ( 1 ): 79 - 82 . (in Chinese)
MÁCA P , SOVJÁK R , KONVALINKA P . Mix design of UHPFRC and its response to projectile impact [J ] . International Journal of Impact Engineering , 2014 , 63 : 158 - 163 . DOI: 10.1016/j.ijimpeng.2013.08.003 http://doi.org/10.1016/j.ijimpeng.2013.08.003 https://linkinghub.elsevier.com/retrieve/pii/S0734743X13001589 https://linkinghub.elsevier.com/retrieve/pii/S0734743X13001589
SHAH Q H , HAMDANI A . The damage of unconfined granite edge due to the impact of varying stiffness projectiles [J ] . International Journal of Impact Engineering , 2013 , 59 : 11 - 17 .
ZHANG F , POH L H , ZHANG M . Resistance of cement-based materials against high-velocity small caliber deformable projectile impact [J ] . International Journal of Impact Engineering , 2020 , 144 : 103629 . DOI: 10.1016/j.ijimpeng.2020.103629 http://doi.org/10.1016/j.ijimpeng.2020.103629 https://linkinghub.elsevier.com/retrieve/pii/S0734743X20302141 https://linkinghub.elsevier.com/retrieve/pii/S0734743X20302141
韩晶 , 王华 , 牛新立 , 等 . 一种用于破碎岩土的异型弹芯撞击响应分析 [J ] . 北京航空航天大学学报 , 2013 , 39 ( 12 ): 1619 - 1623 .
HAN J , WANG H , NIU X L , et al . Impacting response analysis on a deformed projectile using for breaking rock [J ] . Journal of Beijing University of Aeronautics and Astronautics , 2013 , 39 ( 12 ): 1619 - 1623 . (in Chinese)
XIAO X K , ZHANG W , WEI G , et al . Effect of projectile hardness on deformation and fracture behavior in the Taylor impact test [J ] . Materials & Design , 2010 , 31 ( 10 ): 4913 - 4920 . DOI: 10.1016/j.matdes.2010.05.027 http://doi.org/10.1016/j.matdes.2010.05.027 https://linkinghub.elsevier.com/retrieve/pii/S0261306910003195 https://linkinghub.elsevier.com/retrieve/pii/S0261306910003195
ZHANG Q , ZHI Z , FENG C , et al . Investigation of concrete pavement cracking under multi-head impact loading via the continuum-discontinuum element method [J ] . International Journal of Impact Engineering , 2020 , 135 : 103410 . DOI: 10.1016/j.ijimpeng.2019.103410 http://doi.org/10.1016/j.ijimpeng.2019.103410 https://linkinghub.elsevier.com/retrieve/pii/S0734743X19310255 https://linkinghub.elsevier.com/retrieve/pii/S0734743X19310255
WANG S , LE H T N , POL L H , et al . Resistance of high-performance fiber-reinforced cement composites against high-velocity projectile impact [J ] . International Journal of Impact Engineering , 2016 , 95 : 89 - 104 . DOI: 10.1016/j.ijimpeng.2016.04.013 http://doi.org/10.1016/j.ijimpeng.2016.04.013 https://linkinghub.elsevier.com/retrieve/pii/S0734743X16302159 https://linkinghub.elsevier.com/retrieve/pii/S0734743X16302159
彭建祥 , 李英雷 , 李大红 . 纯钽动态本构关系的实验研究 [J ] . 爆炸与冲击 , 2003 ( 2 ): 183 - 187 .
PENG J X , LI Y L , LI D H . An experimental study on the dynamic constitutive relation of tantalum [J ] . Explosion and Shock Waves , 2003 ( 2 ): 183 - 187 . (in Chinese)
王玥 . 工业纯超细晶钽和钨的塑性变形及断裂行为研究 [D ] . 南京 : 南京理工大学 , 2018 .
WANG Y . Plastic deformation and fracture behavior of commercial pure ultra fine grained tantalum and tungsten [D ] . Nanjing : Nanjing University of Science and Technology , 2018 . (in Chinese)
范才河 , 胡泽艺 , 陈喜红 , 等 . 玄武岩颗粒增强7A04铝基复合材料的界面结构及力学行为 [J ] . 中国有色金属学报 , 2020 , 30 ( 1 ): 40 - 47 .
FAN C H , HU Z Y , CHEN X H , et al . Interface structure and mechanical behavior of basalt particle reinforcedaluminum matrix composites [J ] . The Chinese Journal ofNonferrous Metals , 2020 , 30 ( 1 ): 40 - 47 . (in Chinese)
武仁杰 , 李海波 , 李晓锋 , 等 . 冲击载荷作用下层状岩石破碎能耗及块度特征 [J ] . 煤炭学报 , 2020 , 45 ( 3 ): 1053 - 1060 .
WU R J , LI H B , LI X F , et al . Broken energy dissipation and fragmentation characteristics of layered rock under impact loading [J ] . Journal of China Coal Society , 2020 , 45 ( 3 ): 1053 - 1060 . (in Chinese)
SIMONS E C , WEERHEIJM J , TOUSSAINT G , et al . An experimental and numerical investigation of sphere impact on alumina ceramic [J ] . International Journal of Impact Engineering , 2020 , 145 : 103670 . DOI: 10.1016/j.ijimpeng.2020.103670 http://doi.org/10.1016/j.ijimpeng.2020.103670 https://linkinghub.elsevier.com/retrieve/pii/S0734743X20307405 https://linkinghub.elsevier.com/retrieve/pii/S0734743X20307405
FORRESTAL M J , AlTMAN B S , CARGILE J D , et al . An empirical equation for penetration depth of ogive-nose projectiles into concrete targets [J ] . International Journal of Impact Engineering , 1994 , 15 ( 4 ): 395405 .
闪雨 . 弹体非正侵彻混凝土质量侵蚀与运动轨迹研究 [D ] . 北京 : 北京理工大学 , 2015 .
SHAN Y . Investigation on the mass abrasion and motion of the projectile non-normal penetrating into concrete [D ] . Beijing : Beijing Institute of Technology , 2015 . (in Chinese)
刘海鹏 , 高世桥 , 金磊 , 等 . 弹侵彻混凝土靶面成坑的分阶段分析 [J ] . 兵工学报 , 2009 , 30 ( 增刊2 ): 52 - 56 .
LIU H P , GAO S Q , JIN L , et al . Phase analysis on crater-forming of projectile penetrating into concrete target [J ] . Acta Armamentarii , 2009 , 30 ( S2 ): 52 - 56 . (in Chinese)
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