An experimental study on the impact damage of explosives

CORC > 力学研究所 > 中国科学院力学研究所 > 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)
	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
关键词	Impact damage Polarized light microscopy
中文摘要	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.
收录类别	CPCI-S ; EI
会议网址	http://dx.doi.org/10.1115/OMAE2002-28099
会议录	Process in Safety Science and Technology Part B
语种	英语
ISBN号	703010787X
WOS记录号	WOS:000179871800272
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60246]
专题	力学研究所_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]. 见:Progress in Safety Science and Technology. Taian, China. October 10, 2002 - October 13, 2002.http://dx.doi.org/10.1115/OMAE2002-28099.