压缩剪切作用下PBX的响应特性  

Response Characteristics of Polymer Bonded Explosive in Compression and Shear Test

作　　者：代晓淦[1,2] 王娟[1] 黄谦[1] 申春迎[1] 黄风雷[2] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621999 [2]北京理工大学机电学院,北京100081

出　　处：《含能材料》2015年第4期356-361,共6页Chinese Journal of Energetic Materials

摘　　要：为了研究高聚物粘结炸药（PBX）在压缩剪切作用下的响应特性,采用设计的压缩剪切试验装置,对Φ20 mm×40 mm的PBX-932和PBX-C43在22-57 m·s^-1撞击速度范围内进行了响应试验。试验中采用压力计测试了压力变化过程,通过高速录像照片分析了撞击过程,采用冲击波超压传感器测量了炸药的反应超压,分析了两种炸药的响应特性。结果表明,随着撞击速度增加,两种PBX炸药的损伤度增加。在压力160-400 MPa,脉宽1.5 ms的压缩剪切作用下,PBX-C43和PBX-932的撞击速度阈值分别为25.5-27.7 m·s^-1和22.7-24.4 m·s^-1。两种炸药的反应程度基本一致。To study the response characteristics of polymer bonded explosive（ PBX） under the effect of compression and shear,the response test for PBX-932 and PBX-C 43 with same dimension of Φ20 mm× 40 mmin the impact velocity of 22-57 m·s^-1 were performed by a designed compression / shear test device. The pressure change process in the experiments was measured by pressure gauges. The impact process was analyzed by high-speed motion pictures. The reaction overpressure of explosive was measured by shock wave overpressure sensor. The response characteristics for two explosive were analyzed. Results showthat the damage of PBX increases with impact velocity rising. The impact velocity threshold of PBX-C 43 and PBX-932 under the action of pressure range of 160-400 MPa and pulse width of 1. 5 ms is 25. 5-27. 7 m·s-1 and 22. 7-24. 4 m·s-1,respectively. The reaction degree for two explosive is basically identical.

关 键 词：压缩剪切试验 响应特性 高聚物粘结炸药(PBX) 

分 类 号：TQ560.1[化学工程—炸药化工]