CL-20基含铝炸药水下爆炸实验研究与数值模拟(英文)  

Experimental Study and Numerical Simulation of CL-20-Based Aluminized Explosive in Underwater Explosion

作　　者：冯凇[1] 饶国宁[1] 彭金华[1] FENG Song;RAO Guo-ning;PENG Jin-hua(School of Chemical Engineering,Nanjing University of Science ＆ Technology,Nanjing 21 0094,China)

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《含能材料》2018年第8期686-695,共10页Chinese Journal of Energetic Materials

基　　金：National Natural Science Foundation For Young Scholars of China(11101091)

摘　　要：为了研究含铝粉与不含铝粉的六硝基六氮杂异伍兹烷(CL‐20)基高聚物粘结炸药(PBXs)的水下爆炸过程,制备了含铝量分别为0和15%的两种炸药,设计了一个水下爆炸实验装置,得到了炸药的冲击波压力历程、气泡周期和气泡脉动图。计算了两种炸药的冲击波能量、气泡能量和水下爆炸总能量。采用AUTODYN软件模拟了水下爆炸过程。结果表明,当铝含量从0增大到15%时,水下爆炸总能量由1.4倍TNT当量增加到1.7倍TNT当量。气泡脉动过程中,时间从49.5 ms到49.8 ms时,含铝炸药气泡内产生火光。含铝炸药与非含铝炸药超压分别为15.16 MPa与15.51 MPa,气泡二次压力分别为2.25 MPa与2.35 MPa,气泡周期分别为50.20 ms与46.76 ms,气泡最大半径分别为67.87 cm与60.27 cm;仿真得到含铝炸药与非含铝炸药参数超压分别为14.90 MPa与15.14 MPa,气泡二次压力分别为2.16 MPa与2.27 MPa,气泡周期分别为49.32 ms与45.90 ms,气泡最大半径分别为66.32 cm与58.89 cm。实验与仿真结果吻合良好。To study the underwater explosion process of hexanitrohexaazaisowurtzitane（CL-20）-based polymer bonded explosives（PBXs）with and without aluminum powders,two kinds of explosives with aluminum contents of 0 and 15% were prepared. An underwater explosion experimental device was designed,and the images of pressure histories,bubble periods and bubble pulse of shock wave were obtained. The shock wave energy,bubble energy and total underwater explosion energy of two kinds of explosives were calculated The underwater explosion process was well-simulated by the AUTODYN software. Results show that when aluminum content increases from 0 to 15%,the total underwater explosion energy increases from 1.4 times TNT equivalent to 1.7 times TNT equivalent. In the process of bubble pulsation,the light is produced in the bubble of CL-20-based aluminized explosive when the time is from 49.5 ms to 49.8 ms. The peak pressure of aluminized explosives and nonaluminized explosives are 15.16 MPa and 15.51 MPa. The bubble of secondary pressure wave are 2.25 MPa and 2.35 MPa,50.20 ms and 46.76 ms for the bubble periods. The maximum bubble radius are 67.87 cm and 60.27 cm. The simulation results of aluminized explosives and non-aluminized explosives overpressure are 14.90 MPa and 15.14 MPa. The bubble of secondary pressure wave are 2.16 MPa and 2.27 MPa,bubble period for 49.32 ms and 45.90 ms,66.32 cm and 58.89 cm for the maximum bubble radius. The shock wave and bubble parameters obtained by calculation are in good agreement with experimental results.

关 键 词：水下爆炸 六硝基六氮杂异伍兹烷(CL-20) 含铝炸药 冲击波 气泡 数值模拟 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O384[理学—流体力学]