不同Al粒径的PTFE/Al活性射流作用双层间隔靶的实验研究  

Experimental Study on the Effect of Al Particle Size on the Damage Performance of PTFE/Al Reactive Jet Against Double⁃layer Spacer Target

作　　者：叶胜 毛亮 胡榕 蔡尚晔 姜春兰[1] 卢士伟 YE Sheng;MAO Liang;HU Rong;CAI Shang-ye;JIANG Chun-lan;LU Shi-wei(State Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Shanxi Jiangyang Chemical Industry Co.LTD.Jinxi Group Military Research Institute,Taiyuan 030041,China)

机构地区：[1]北京理工大学爆炸科学与技术重点实验室,北京100081 [2]晋西集团山西江阳化工有限公司军品研究所,山西太原030041

出　　处：《含能材料》2021年第7期625-633,共9页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金资助(12002045)。

摘　　要：为了获得采用不同铝(Al)粒径制备而成的聚四氟乙烯/铝(PTFE/Al)活性药型罩作用双层间隔靶的毁伤威力特性,采用模压烧结成型法制备了5种不同Al粒径(10,30,70,200μm,50/70μm)的PTFE/Al活性药型罩,并开展了相应的静爆威力实验。研究结果表明:随着Al粒径从10μm增加到200μm时,活性射流对钢靶和铝靶的破孔面积、等效破裂孔直径、破孔隆起高度以及形成的破坏区域体积均呈现减小趋势,当Al粒径为10μm时破坏钢靶的毁伤参量为S_(Steel)=0.4 CD(装药直径)、hAl=0.48 CD、V_(Steel)=420 cm3,破坏铝靶的毁伤参量为SAl=3.8 CD、hAl=1.72 CD、VAl=2280 cm^(3)。采用50 nm/70μm级配Al粒径的PTFE/Al活性射流对钢靶的穿孔效果显著提高,等效破裂孔直径d_(Steel)=0.59 CD。结合实验相关数据拟合得到了活性射流对后效铝靶的爆裂毁伤效应分析模型。In order to obtain the damage characteristics of polytetrafluoroethylene/aluminum(PTFE/Al),five PTFE/Al reactive lin⁃ers with different Al particle sizes,by mold pressing and sintering,were prepared acting on double spacered plates.The results show that with the increase of Al particle size from 10μm to 200μm,the broken hole area,equivalent broken hole diameter,broken hole uplift height and the volume of damaged area of _(steel) and aluminum targets both decrease.When Al particle size is 10μm,the damaged parameters of _(steel) target are S_(steel)=0.4 CD(charge diameter),h_(steel)=0.48 CD,V_(steel)=420 cm3,and the dam⁃aged parameters of aluminum target are Saluminum=3.82 CD,haluminum=1.72 CD,Valuminum=2280 cm^(3).PTFE/Al reactive jet with Al par⁃ticle size 50 nm/70μm can significantly improve the perforation effect of _(steel) target,and d_(steel)=0.59 CD.Based on the experi⁃mental data,the analysis model of rupturing damage effect of reactive jet on behind⁃tagert is obtained by fitting.

关 键 词：PTFE/Al活性射流 双层间隔靶 Al粒径 侵爆耦合毁伤 

分 类 号：TJ410.4[兵器科学与技术—火炮、自动武器与弹药工程]