自制炸药的冲击波超压测试及 TNT 当量估算
Shock Wave Overpressure Test and Evaluation of TNT Equivalent of Self-made Explosives
刘玲 1袁俊明 1刘玉存 1范星海 2常双君 1王建华 1于雁武1
作者信息
- 1. 中北大学化工与环境学院，山西 太原 030051
- 2. 陕西应用物理化学研究所，陕西 西安 710061
- 折叠
摘要
为评估典型自制炸药的威力，采用无线存储测试仪测量了一定质量的雷药、三过氧化三丙酮（TATP）、六亚甲基三过氧化二胺（HMTD）、高氯酸钾／铝及硝酸铵／铝5种自制炸药爆炸后不同距离处的冲击波超压及衰减规律。运用非线性显式动力学软件 AUTODYN 建立了 TNT 炸药-土壤-空气域有限元模型，用流固耦合算法计算了不同质量 TNT 的超压场，获得了距离爆心38、58和78 cm 处 TNT 炸药质量-超压曲线，依据该曲线计算了自制炸药的 TNT 当量。结果表明，TATP、HMTD 的 TNT 当量系数计算结果与文献值基本一致，相对误差在2％以内。
Abstract
To evaluate the power of typical self-made explosives,the overpressure and attenuation rule at different distances after the explosion of five kinds of self-made explosives:fireworks,TATP, HMTD,KClO4/Al, NH4 NO3/Al with a certain mass were measured by a wireless memory tester.An infinite element wedge model of TNT explosive-soil-airdomain was established by a nonlinear explicit dynamics software AUTODYN. The overpressure field of TNT with different mass was calculated with the fluid-solid coupling algorithms.The TNT mass-overpressure curves at the distance of 38,58 and 78cm from explosion center were obtained .The TNT equivalents of self-made explosives were estimated based on the TNT mass-overpressure curves.Results show that the computed results of TNT equivalent coefficient for TATP and HMTD are in agreement with the literature ones, and the relative error is within 2%.
关键词
爆炸力学/自制炸药/冲击波超压/TNT当量/数值模拟Key words
explosion mechanics/self-made explosives/shock wave overpressure/TNT equivalent/numerical simulation引用本文复制引用
出版年
2015
国家科技期刊平台
NSTL
万方数据