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冲击作用下非均质炸药热点形成的离散元方法 被引量：4

DEM Study on Hot Spots Formation of Heterogeneous Explosives Under Shock Loading
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摘要 用离散元方法模拟以HMX为基的塑料粘结炸药与HMX颗粒炸药在冲击载荷作用下的细观响应过程.结果表明对于HMX颗粒炸药,炸药颗粒界面处的温度及压力远高于颗粒内部;对于HMX为基的塑料粘结炸药,粘结剂处的温度及压力亦高于颗粒内部;两种冲击响应过程的对比分析表明,粘结剂有效地降低了炸药颗粒边界处的温度及压力. Mesoscale responses of plastic boned explosives（ PBX） and grannular HMX under shock loading were investigated with discrete element method（ DEM）. It shows that for shocked grannular HMX temperature and pressure in grain boundary are much higher than those of inner HMX crystals. In the case of shocked PBX high temperature and pressure regions are mostly located in binder and near parts. Comparisons show that temperature and pressure in grain boundary are effectively reduced by binder.
作者 刘超 石艺娜 梁仙红
机构地区 北京应用物理与计算数学研究所
出处 《计算物理》 CSCD 北大核心 2014年第5期523-530,共8页 Chinese Journal of Computational Physics
基金 国家自然科学基金(11202034) 中物院科学技术发展基金(2011B0101028 2013B0101013) 中物院科学技术重点基金(2012A0101004)资助项目
关键词 离散元方法 热点 冲击加载 炸药 discrete element method hot spot shock loading explosive
分类号 O347.1 [理学—固体力学]
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参考文献22

  • 1Field J E. Hot spot ignition mechanisms for explosives[J]. Acc Chenm Res, 1992, 2S: 489 -496.
  • 2Menikoff R. Pore collapse and hot spots in HMX [ C ] // Conferences on Shock Compression of Condensed Matter, 2004 . 706: 393 - 396.
  • 3Menikoff R, Scwell T D. Constituent properties of HMX needed for mesoscale simulations[ J]. Combust Theory Model, 2002, 6: 103-125.
  • 4Menikoff R. Granular explosives and initiation sensitivity [ C ]//Conferences on Shock Compression of Condensed Matter, 2002, 979 - 983.
  • 5Menikoff R. Hot spot formation from shock reflections[J]. Shock Wave, 2011, 21:141 -148.
  • 6Reaugh J E. Grain-scale dynamics in explosive[ R]. Lawrence Livermore National Laboratory, UCRL-ID -150388. 21302.
  • 7Reaugh J E. First results of reaction propagation rates in HMX at high pressure[ C ]//Conferences on Shock Compression of Condensed Matter, 2003 : 401 - 404.
  • 8Reaugh J E. Muhi-scale computer simulations to study the reaction zone of solid explosives [ C ]//Proceedings of the 13th Int Syrup on Detonation, 2006:1276 - 1285.
  • 9Baer M R, Trott W M. Mesoscale descriptions of shock-loaded heterogeneous porous materials [ C ]//Conferences on Shock Compression of Condensed Matter, 2001:713 -716.
  • 10Baer M R. Modeling heterogeneous energetic materials at the mesoseale[ J]. Thermochimic Acta, 2002, 384:351 -357.

二级参考文献29

  • 1张小宁 等.超细HMX和RDX撞击感度的研究[J].火炸药学报,1999,22(1).
  • 2胡雅达.不敏感高级炸药（IHE）的研制－－NTO炸药及其配方的制备与性能[J].火炸药学报,1990,(6):3-20.
  • 3Campell A W,Davis W G,Travis J R. Shock Initiation of Detonation in Liquid Explosives [J]. Physics of Fluids, 1961,4(4) :498.
  • 4Zhang G R,Chen D N. The Initiation Dynamics in Condensed Explosives [M]. Beijing.-National Defense Industry Press, 1991. (in Chinese).
  • 5Sun J S, Zhu J S. Theory Detonation Physics [M]. Beijing.. National Defense Industry Press, 1995. (in Chinese).
  • 6Sun C W, Wei Y Z, Zhou Z K. Application Detonation Physics [M]. Beijing : Science Press, 2000. (in Chinese).
  • 7Dienes J K,Middleditch J, Kershner J D, et al. Progress in Statistical Crack Mechanics: An Approach to Initiation[A]//Proceedings of the 12th Symposium (International) on Detonation [C]. San Diego,2002.
  • 8DienesJ K,Kershner J D. Multiple-Shock Initiation via Statistical Crack Mechanics [A]//Proceedings of the llth Symposium (International) on Detonation [C]. Colorado, 1998 : 717-724.
  • 9Dey T N,Kamm J R. Numerical Modeling of Shear Band Formation in PBX-9501 [A]//Proceedings of the llth Symposium (International) on Detonation [C]. Colorado, 1998 : 725-734 .
  • 10Chitanvis S M. Hotspot Mechanisms in Shock-Melted Explosives [J]. AlP Conf Proc, 2004,706: 319-322.

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二级引证文献6

计算物理
2014年 第5期

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