PTFE基含能药型罩射流释能特性及影响因素  

Jet Energy Release Characteristics and Influencing Factors of the PTFE⁃based Energetic Liner

作　　者：李延[1,2] 王伟 张雷雷[2] 王在成[1] 姜春兰[1] LI Yan;WANG Wei;ZHANG Lei-lei;WANG Zai-cheng;JIANG Chun-lan(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Beijing Institute of Space Long March Vehicle,Beijing 100076,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点试验室,北京100081 [2]北京航天长征飞行器研究所,北京100076

出　　处：《含能材料》2021年第7期617-624,共8页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金项目(11672042)。

摘　　要：为了研究聚四氟乙烯(PTFE)基含能药型罩的动态释能特性及其形成的射流对目标的侵爆毁伤效果,采用静爆试验测量了含能射流与铝射流在准密闭容器中的动态超压,并通过理论计算得到射流释能及释能效率。分析认为,含能射流在成型过程中会发生爆燃反应,相比于铝射流,含能射流超压峰值可提升3~4倍。对于30 g含能药形罩,钨(W)含量为0%~70%时,随着W含量提高,射流释能降低,但药型罩承受爆炸驱动载荷提高,且钨颗粒与活性金属摩擦加剧,射流释能效率提高。对于PTFE/Ti药形罩,在13~30 g范围内,随着药型罩质量增加,射流释能量提高,但侵彻体成型压力降低,射流释能效率下降。The dynamic energy release characteristics of the PTFE⁃based energetic liner are related to the damage effect of the jet to the target.In this paper,the dynamic overpressure of energetic and aluminum jets in a quasi⁃closed chamber was measured by static explosion test.The jet energy release and energy release efficiency were obtained by theoretical calculation.The results showed that the energetic liner underwent a deflagration reaction during the forming process,and the overpressure peak of the energetic jet can be increased by 3 times to 4 times compared with that of aluminum jet.For PTFE/Ti energetic liner,in the con⁃tent range of 0%to 70%,as the tungsten content increased,the jet energy release decreased.But the energy release efficiency was improved due to the increased explosive driving load and the intensified friction between tungsten particles and active met⁃als.For PTFE/Ti energetic liner,in the mass range of 13-30 g,as the mass of the liner increased,the jet energy release was im⁃proved.But the energy release efficiency dropped due to the decreased forming pressure of the penetrator.

关 键 词：含能药型罩 动态超压 射流释能量 释能效率 

分 类 号：TJ410.1[兵器科学与技术—火炮、自动武器与弹药工程]