An experimental study on the impact damage of explosives

IMECH-IR > 力学所知识产出(1956-2008)

	An experimental study on the impact damage of explosives
	Chen PW; Huang FL; Ding YS(丁雁生)
会议录名称	Process in Safety Science and Technology Part B
	2002
会议名称	Progress in Safety Science and Technology
会议日期	October 10, 2002 - October 13, 2002
会议地点	Taian, China
摘要	Damage not only deteriorates the mechanical properties of explosives, but also influences the sensitivity, combustion and even detonation properties of explosives. The study of formation mechanisms and evolution rule of damage, and the influences of damage on explosives is of great importance for safety evaluation of explosive materials. An experimental study of impact damage in cast Composition B and hot pressed PBXN-5 is presented in this paper. A long-pulse low-velocity gas gun with a gas buffer is used to induce dynamic damage in samples. The projectile velocities and stress history in impact loading are recorded. The microstructure evolution before and after impact are examined by use of Scanning Electronic Microscopy (SEM) and Polarized Light Microscopy (PLM). In addition, the densities and ultrasonic attenuation of undamaged and damaged explosives are measured. The results show that both Composition B and PBXN-5 exhibit brittle damage characteristics. However, due to the difference in compositions, PBXN-5 exhibits better resistance to dynamic loading than Composition B.
关键词	Impact Damage Polarized Light Microscopy
WOS记录号	WOS:000179871800272
ISBN号	703010787X
URL	查看原文
收录类别	CPCI-S ; EI
语种	英语
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60246
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Chen PW,Huang FL,Ding YS. An experimental study on the impact damage of explosives[C]Process in Safety Science and Technology Part B,2002.

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