Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects
	Feng DL(冯殿垒); Liu MB(刘谋斌); Li HQ; Liu GR
刊名	COMPUTERS & FLUIDS
	2013-11-05
通讯作者邮箱	fengdianlei@imech.ac.cn; liumoubin@imech.ac.cn; huiqili@bit.edu.cn; liugr@ucmail.uc.edu
卷号	86 页码:77-85
关键词	Shaped-charge jet Smoothed particle hydrodynamics (SPH) Penetration Kernel gradient correction
ISSN号	0045-7930
通讯作者	Liu, MB (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Feng, D. L.; Liu, M. B.] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Li, H. Q.] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China; [Liu, G. R.] Univ Cincinnati, Cincinnati, OH 45221 USA
合作状况	国际
中文摘要	Shaped charge, as a frequently used form of explosive charge for military and industrial applications, can produce powerful metal jet and lead to stronger penetration effects onto targets than normal charges. After the explosion of high explosive (HE) charge, the detonation produced explosive gas can exert tremendous pressure on surrounding metal case and liner with very large deformation and even quick phase-transition. In this paper, the entire process of HE detonation and explosion, explosion-driven metal deformation and jet formation as well as the penetrating effects is modeled using a smoothed particle hydrodynamics (SPH) method. SPH is a Lagrangian, meshfree particle method, and has been widely applied to different areas in engineering and science. A modified scheme for approximating kernel gradient (kernel gradient correction, or KGC) has been used in the SPH simulation to achieve better accuracy and stability. The modified SPH method is first validated with the simulation of a benchmark problem of a TNT slab detonation, which shows accurate pressure profiles. It is then applied to simulating two different computational models of shaped-charge jet with or without charge cases. It is found that for these two models there is no significant discrepancy for the length and velocity of the jet, while the shapes of the jet tip are different. The modified SPH method is also used to investigate the penetrating effects on a steel target plate induced by a linear shaped charge jet. The effectiveness of the SPH model is demonstrated by the good agreement of the computational results with experimental observations and the good energy conservation during the entire process.
学科主题	爆炸力学
分类号	二类/Q2
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China [11172306]; National Defense Innovation Funds of the Chinese Academy of Sciences [Y175031XML]
原文出处	http://dx.doi.org/10.1016/j.compfluid.2013.06.033
语种	英语
WOS记录号	WOS:000325834300008
公开日期	2013-11-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47515]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Feng DL,Liu MB,Li HQ,et al. Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects[J]. COMPUTERS & FLUIDS,2013,86:77-85.
APA	冯殿垒,刘谋斌,Li HQ,&Liu GR.(2013).Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects.COMPUTERS & FLUIDS,86,77-85.
MLA	冯殿垒,et al."Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects".COMPUTERS & FLUIDS 86(2013):77-85.