聚奥-9C装药的传爆管殉爆

Sympathetic detonation of booster pipe with JO-9Ccharge

为了研究冲击波作用下引信传爆装置的响应规律,进行了以主发炸药为RDX-8701、被发装置为聚奥-9C(JO-9C)装药的传爆管(含导爆药柱)的殉爆实验。通过观测残留传爆药、壳体和见证块变形,判断传爆管的爆炸程度,分析了殉爆过程中JO-9C爆轰波的成长历程及传播规律。采用AUTODYN软件建立了殉爆实验有限元模型,计算模型中主要考虑了主发炸药产生的爆炸冲击波对传爆管的冲击响应。基于流固耦合方法,通过调整距离模拟计算得到了传爆管的临界殉爆距离和殉爆安全距离。结果表明,传爆管上端的侧角受到爆炸冲击后产生的爆轰波沿斜下方传播,使传爆药柱完全爆轰,并引起导爆药柱发生殉爆;数值模拟结果显示,JO-9C装药的传爆管临界殉爆距离为5.7mm,殉爆安全距离为8.8mm。

In the present study we carried out sympathetic detonation experiments,using RDX-8701 as donor and booster pipe and using JO-9 Ccharge as acceptor explosive,to study the response of the fuse explosion device under shock wave.By observing the remainder of the JO-9 Cexplosive,the deformation of the witness and the steel shell,and judging the explosive reaction state,we analyzed the histories in the sympathetic detonation reaction of the acceptor,and established the calculation model of the sympathetic detonation using AUTODYN.The calculated results of the model included the effects of the shock waves produced by the donor that acted on the booster pipe.Based on the fluidsolid coupling method,we also obtained the critical and safety distance of the sympathetic detonation through numerical simulation by adjusting experimental distance.The results show that the detonation wave propagated down firstly along the slope direction of the booster charge,thereby leading to the detonation of the booster charge,and then detonated the detonator explosive.According to the numerical simulation results,the critical and the safety distances of the sympathetic detonation were 5.7 mm and 8.8 mm respectively.