RDX与D-RDX基PBX炸药撞击安全性研究

Impact Safety of PBX-based RDX/D-RDX

为深入研究撞击作用下RDX/D-RDX为基高聚物粘结炸药(PBX)的安全性差异,利用Hopkinson实验原理,参照撞击感度试验方法设计了一种能测试炸药试样在较高速度撞击下的动态力学变化历程及撞击安全性的试验方法。试验结果表明,以RDX/D-RDX为基PBX炸药的撞击安全性和在撞击加载下的反射波幅值、脉宽有较大差异。运用LS-DYNA程序进行数值计算,所得结果与实验结论基本相符。

By using Hopkinson principle and impact sensitivity test method,an impact safety experiment was designed for studying the impact security diversity between PBX-based RDX and PBX-based reduced insensitive RDX （D-RDX） explosive, which can determine the dynamic change process and the impact sensitivity of explosive sample in the higher impact velocity. Results show that the impact safety of PBX-based RDX and PBX-based D-RDX explosive, the reflecting amplitude and pulse width after impact loading are quite different. The result of LS-DYNA numerical simulation are basically consistent with experimental results.