枪击试验中不同尺寸PBX-2炸药响应规律研究  

Reaction Properties for Different Size PBX-2 Explosives in Bullet Impact Test

作　　者：代晓淦[1] 申春迎[1] 吕子剑[1] 向永[1] 

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621900

出　　处：《含能材料》2008年第4期432-435,共4页Chinese Journal of Energetic Materials

摘　　要：采用改进的枪击试验(12.7 mm机枪)对Φ100 mm×45 mm(1#)、Φ50 mm×100 mm(2#)、Φ75 mm×150 mm(3#)和Φ100 mm×200 mm(4#)四种不同尺寸PBX-2炸药柱进行试验,测试了子弹在样品中的穿行时间和子弹撞击样品后的速度,测量了炸药的反应超压,分析了枪击试验中PBX-2炸药的响应规律。结果初步表明,枪击试验中随着PBX-2炸药长度的增加,其反应程度也随之增强。采用ANSYS/LS-DYNA程序对1#、2#和4#样品的枪击试验进行了数值模拟,计算结果与试验测试结果基本一致。Bullet impact tests for four different sizes （Ф100 mm ×45 mm（1^#） ,Ф50 mm×100 mm（2^#） ,Ф75 mm×150 mm（3^#） and Ф100 mm ×200 mm（4^#） ） PBX-2 explosives were carried out by improving test method. The time of bullet perforating target and velocity after perforating target were obtained. The reaction overpressure for different size explosives were measured. The reaction properties for different size PBX-2 explosives were analyzed in bullet impact test. Results show that the reaction of PBX-2 explosive is more violent with longer size. The numerical simulation of bullet impact test for 1^# , 2^# and 4^# samples was completed by ANSYS/LS-DYNA, and the calculated results are in accord with test results.

关 键 词：爆炸力学 炸药安全性 枪击试验 数值模拟 

分 类 号：TJ206[兵器科学与技术—武器系统与运用工程]