斜波压缩下PBX-59未反应固体炸药的状态方程  

Equation of State of Unreacted Solid Explosive PBX-59 Under Ramp Wave Compression

作　　者：种涛[1] 蔡进涛[1] 王桂吉[1] CHONG Tao;CAI Jin-tao;WANG Gui-ji(Institute of Fluid Physics,CAEP,Mianyang 621999,China)

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621999

出　　处：《含能材料》2021年第1期35-40,I0003,共7页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金资助(11702276,11972031);国防科技重点实验室基金(6142A03192007)。

摘　　要：利用磁驱动加载实验技术,开展了斜波压缩下未反应固体炸药PBX-59的动力学特性研究,获得了峰值压力18.5 GPa下PBX-59的动力学响应。利用阻抗匹配修正的迭代Lagrange数据处理方法,获取了PBX-59炸药斜波压缩加载下的p-V关系和声速-粒子速度关系等动力学特性参数。结合实验获得的动力学参数和等熵状态方程,对实验过程开展了流体动力学数值模拟,计算和实验结果基本吻合,验证了本研究实验技术、数据处理方法和物理模型的正确性。The dynamic characteristics of unreacted solid explosive PBX-59 under ramp wave compression were studied with a magnetic driven loading experimental technique,and the dynamic response of PBX-59 under a peak pressure up to 18.5 GPa was obtained.The p-V relationship,the acoustic velocity-particle velocity relationship and other dynamic parameters of PBX-59 were obtained by the iterative Lagrange data processing method modified by impedance matching under the ramp wave compression.Combined with the dyamic parameters and isentropic equation of state derived from experimental data,the experimental results were hydrodynamically simulated.The numerical calculation agree well with the experimental results,which verifies the validity of the experimental technology,data processing method,and physical model.

关 键 词：固体炸药 磁驱动斜波加载 等熵压缩线 状态方程 PBX-59 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O34[理学—固体力学]