| 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 Author | Feng, Chun(fengchun@imech.ac.cn) |
| Source Publication | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
 |
| 2019-11-01 | |
| Volume | 133Pages:16 |
| ISSN | 0734-743X |
| Abstract | 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. |
| Keyword | Fragments field Continuum-based discrete element method Cross-scale calculation Detonation product leakage algorithm |
| DOI | 10.1016/j.ijimpeng.2019.103331 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000497248800011 |
| WOS Keyword | DISCONTINUITY EMBEDDED APPROACH ; FINITE-ELEMENT ; MODEL ; FRACTURE ; LENGTH |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | Major Special Projects of the National Defense Science and Technology Bureau |
| Funding Organization | Major Special Projects of the National Defense Science and Technology Bureau |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Feng, Chun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81225 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.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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