热和枪击复合环境试验中PBX-2炸药的响应特性

Reaction Characteristics of PBX-2 under Heat and Bullet Impacting Multiple Test

为研究炸药在热和枪击复合环境下的安全性,采用在枪击试验样品上增加加热系统的方式,对Φ75mm×150mm PBX-2炸药进行了模拟复合环境试验。试验过程中采用热电偶测试样品内不同位置的温度变化过程,通过冲击波超压测试分析了炸药的反应程度,获得了PBX-2炸药在热和枪击复合环境试验中的响应特性。结果表明,热和枪击复合环境试验中PBX-2炸药的反应程度基本一致,建立的热和枪击复合环境试验方法,为评估炸药在异常环境下的安全性能提供了一种新的技术途径。

In order to study the explosive safety under heat and bullet impacting multiple environment,the mode of adding heating system on the base of bullet impacting test was used to simulate multiple effect. The multiple environment tests for PBX-2 of 150 long with a diameter of 75mm were made. The processes of temperature changing for different positions in the sample were measured by use of thermocouples, and the reaction degree of different size explosives was analyzed by the measurement of shockwave overpressure. The reaction characteristics for PBX-2 were gained under heat and bullet impacting multiple environment. The results show that reaction degree for PBX-2 is essential accord under multiple test,the test method can provide a new means to evaluate explosive safety under exceptional environment.