LLM-105基传爆药柱起爆能力实验与数值模拟

Initiation Capacity Test and Numerical Simulation of LLM-105 Based Booster

为了研究不敏感传爆药在爆炸序列中对主装药的起爆能力,选用TATB炸药为被发药柱,2A12铝合金为隔板材料,进行了LLM-105基传爆药柱的起爆能力实验,并采用点火增长反应速率方程对LLM-105传爆药柱起爆能力实验进行数值模拟研究.保持模型其他参数不变,通过调整铝隔板厚度,模拟预估了在该装药条件下被发药柱TATB发生冲击起爆的临界铝隔板厚度.为确定材料参数以及模拟计算结果的准确性,进行临界铝隔板厚度验证实验.结果表明:LLM-105基传爆药柱有完全起爆TATB钝感炸药的能力;该装药条件下LLM-105基传爆药柱起爆TATB的临界铝隔板厚度为1.3~1.5 mm,模拟预测结果与验证实验结果基本相符.

In order to study the initiation capacity of LLM-105 insensitive booster to main charge in the explosive train,the initiation capacity test of LLM-105-based booster was carried out based on TATB used as acceptor explosive and 2A12 aluminum alloy as gap material.The initiation capacity test of LLM-105 based booster was simulated by using the ignition and growth reaction rate equation.Keeping other parameters of model unchanged,the critical gap thickness for TATB shock initiation of the acceptor under the charge condition was predicted by adjusting the thickness of aluminum gap.In order to determine the accuracy of the material parameters and the simulation results,the critical aluminum gap thickness verification test was carried out.The experimental results show that LLM-105-based booster has the ability to completely initiate TATB insensitive explosive.Under the charge condition,the critical aluminum gap thickness for TATB initiated by LLM-105 based booster is 1.3~1.5 mm,and the simulation prediction results are basically consistent with the verification test results.