超高速侵彻及地冲击效应试验技术与应用  

Experiment techniques and applications of hyper-velocity penetration and ground shock effect

作　　者：李干 李杰 张中威 随亚光[2] 张德志[2] 宋春明 LI Gan;LI Jie;ZHANG Zhongwei;SUI Yaguang;ZHANG Dezhi;SONG Chunming(State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact,Army Engineering University of PLA,Nanjing 210007,China;Northwest Institute of Nuclear Technology,Xi’an 710024,China)

机构地区：[1]陆军工程大学爆炸冲击防灾减灾国家重点实验室,江苏南京210007 [2]西北核技术研究所,陕西西安710024

出　　处：《防护工程》2023年第3期71-78,共8页Protective Engineering

基　　金：国家自然科学基金资助项目(11602303,11972045);中国博士后科学基金面上项目(2017M621752)

摘　　要：针对超高速侵彻、地冲击效应量测中应力波频率高、发散性强、信号弱等问题,基于已建成的二级轻气炮试验平台,自主研制了与之配套的系列试验系统和试验技术,探讨其测试原理、能力和适用范围;同时对系列典型材料开展了超高速侵彻、撞击和地冲击试验,证实了所研发试验技术和量测系统的有效性。通过超高速侵彻大理石靶体试验,成功获取了弹速和成坑参数,在1 200~2 300 m/s范围内观察到侵深逆减现象,反映出侵彻机制由刚性侵彻向拟流体侵彻的过渡;通过花岗岩和中厚陶瓷超高速撞击试验,分别研究地冲击应力和自由面粒子速度的演化过程,得到了应力峰值的幂指数衰减规律。In view of problems in hyper-velocity penetration and ground shock effect measurement such as high stress wave frequency,strong dispersion,and low signals,and based on the completed secondary light gas gun experimental platform,a series of experimental systems and techniques have been developed indige⁃nously to explore its test mechanism,capabilities and scope of application;hyper-velocity penetration,impact and ground shock tests were conducted on a series of typical materials,which verified the effectiveness of the developed experimental techniques and measurement systems.Experiments on hyper-velocity penetration of marble targets have successfully obtained the projectile velocity and cratering parameters,typical inverse depth reduction phenomena were observed in the range of 1200-2300 m/s,which reflected the transition of pene⁃tration from rigid to pseudo-fluid characteristics.Tests on granite and medium-thick ceramics have also ob⁃tained the evolution of ground shock stress and the velocity of free surface particles,as well as the exponential attenuation law of the peak stress.

关 键 词：二级轻气炮 超高速 侵彻 地冲击 试验技术 

分 类 号：TJ866[兵器科学与技术—武器系统与运用工程]