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Numerical Simulation of Explosive Particles Compaction
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Qun LIU1, Lang CHEN1, Jian-Ying LU1, 3, Ming ZHANG2
Chinese Journal of High Pressure Physics | 2009, 23(6) : 421 - 426
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Chinese Journal of High Pressure Physics | 2009, 23(6): 421-426
Numerical Simulation of Explosive Particles Compaction
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Qun LIU1, Lang CHEN1, Jian-Ying LU1, 3, Ming ZHANG2
Affiliations
  • 1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
  • 2.Institute of Chemical Material, CAEP, Mianyang 621900, China
  • 3.The Institute of Chemical Defense, Beijing 102205, China
Published: 2009-12-15
Outline
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Understanding the mechanics of explosives compaction can provide theoretical foundation to improve pressing technique and quality of explosive component. In this paper, a calculating model of explosive particles pressed to charge was developed. The explosive particles were considered as being the uniform diameter and arraying in order. With non-linear finite element calculating method, the numerical simulations of explosives compaction were conducted, and the deformation, mechanics and temperature of explosive particles were analyzed. The calculated results show that explosive particles compaction experiences two phases: displacement and deformation. In the displacement phase, the stress centralization appears on the contact surfaces between particles and constrained surface. In the plastic deformation phase, the stress in the particles increases sharply and tend to be uniform. The explosive particles temperature increases with pressing. When the explosive charge is close to the density of crystalline grains, the highest temperature occurs in the center of charge.

explosive  /  particles compaction  /  numerical simulation
刘群, 陈朗, 鲁建英, 张明. 炸药颗粒压制成型数值模拟. 高压物理学报, 2009 , 23 (6) : 421 -426 .
Qun LIU, Lang CHEN, Jian-Ying LU, Ming ZHANG. Numerical Simulation of Explosive Particles Compaction[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (6) : 421 -426 .
Appendix
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Year 2009 volume 23 Issue 6
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Article Info
  • Receive Date：2008-11-22
  • Online Date：2026-10-30
  • Published：2009-12-15
Article Data
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History
  • Received：2008-11-22
  • Revised：2009-07-06
Funding
Affiliations
    1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
    2.Institute of Chemical Material, CAEP, Mianyang 621900, China
    3.The Institute of Chemical Defense, Beijing 102205, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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