An efficient CDEM-based method to calculate full-scale fragment field of warhead

doi:10.1016/j.ijimpeng.2019.103331

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-)

	An efficient CDEM-based method to calculate full-scale fragment field of warhead
	Wang HZ 3; Bai CH 3; 冯春2,3); Xue K 3; Zhu XG(朱心广)1,2
刊名	INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
	2019-11-01
卷号	133 页码:16
关键词	Fragments field Continuum-based discrete element method Cross-scale calculation Detonation product leakage algorithm
ISSN号	0734-743X
DOI	10.1016/j.ijimpeng.2019.103331
通讯作者	Feng, Chun(fengchun@imech.ac.cn)
英文摘要	Warheads full-scale fragment field has great significance to military production and storage safety. In this paper, an improved Continuum-Discontinuum Element Method (CDEM) will be used for the first time to solve the problems of large deformation and cross-scale calculations for warheads, describing the complete process from casing breakage to fragment scattering and landing. A fragment equivalent layer-detonation product escape algorithm is further introduced to increase calculation efficiency, and the fragmentation field is post-processed using a penetrable virtual target board algorithm. This method simulates warhead fragmentation in the full space-time domain, laying a foundation for subsequent study of questions like warhead fragmentation safety distance and fuze delay arming time. Comparison with warhead static explosion and ballistic gun testing data verify the effectiveness of this method.
分类号	一类
资助项目	Major Special Projects of the National Defense Science and Technology Bureau
WOS关键词	DISCONTINUITY EMBEDDED APPROACH ; FINITE-ELEMENT ; MODEL ; FRACTURE ; LENGTH
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000497248800011
资助机构	Major Special Projects of the National Defense Science and Technology Bureau
其他责任者	Feng, Chun
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81224]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.UCAS, Sch Engn Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China; 3.Beijing Univ Technol, State Key Lab Explos Sci, Beijing 10000, Peoples R China;
推荐引用方式 GB/T 7714	Wang HZ,Bai CH,冯春2,3),et al. An efficient CDEM-based method to calculate full-scale fragment field of warhead[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2019,133:16.
APA	Wang HZ,Bai CH,冯春2,3),Xue K,&朱心广.(2019).An efficient CDEM-based method to calculate full-scale fragment field of warhead.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,133,16.
MLA	Wang HZ,et al."An efficient CDEM-based method to calculate full-scale fragment field of warhead".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 133(2019):16.