IMECH-IR  > 流固耦合系统力学重点实验室
An efficient CDEM-based method to calculate full-scale fragment field of warhead
Wang HZ1; Bai CH1; 冯春2,3); Xue K1; Zhu XG(朱心广)2,3
Corresponding AuthorFeng, Chun(fengchun@imech.ac.cn)
Source PublicationINTERNATIONAL JOURNAL OF IMPACT ENGINEERING
2019-11-01
Volume133Pages:16
ISSN0734-743X
AbstractWarheads 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.
KeywordFragments field Continuum-based discrete element method Cross-scale calculation Detonation product leakage algorithm
DOI10.1016/j.ijimpeng.2019.103331
Indexed BySCI ; EI
Language英语
WOS IDWOS:000497248800011
WOS KeywordDISCONTINUITY EMBEDDED APPROACH ; FINITE-ELEMENT ; MODEL ; FRACTURE ; LENGTH
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding ProjectMajor Special Projects of the National Defense Science and Technology Bureau
Funding OrganizationMajor Special Projects of the National Defense Science and Technology Bureau
Classification一类
Ranking1
ContributorFeng, Chun
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/81225
Collection流固耦合系统力学重点实验室
Affiliation1.Beijing Univ Technol, State Key Lab Explos Sci, Beijing 10000, Peoples R China;
2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China;
3.UCAS, Sch Engn Sci, Beijing, Peoples R China
Recommended Citation
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.
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