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含能材料  2010 

不同升温速率热作用下PBX-2炸药的响应规律

DOI: 10.3969/j.issn.1006-9941.2010.03.010

Keywords: 爆炸力学,炸药安全性,烤燃试验,数值模拟

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Abstract:

采用不同升温速率3,5,10,25,105℃·min-1分别对PBX-2炸药进行了烤燃试验,试验中用热电偶分别测试样品半径处和中心处的温度变化过程,通过冲击波超压测量分析了样品的反应程度,根据热分析和烤燃试验结果宏观上分析了PBX-2炸药在热作用下的响应规律。试验结果初步表明:热作用试验中PBX-2炸药随着升温速率升高反应程度降低。采用Arrhenius模型对PBX-2炸药在热作用下响应进行了数值模拟,模拟的炸药温度变化结果与试验测试结果基本一致。

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