An efficient CDEM-based method to calculate full-scale fragment field of warhead
文献类型：期刊论文
| 作者 | Wang HZ3; Bai CH3; 冯春2,3); Xue K3; Zhu XG(朱心广)1,2; Feng C(冯春)
|
| 刊名 | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
 |
| 出版日期 | 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 |
| WOS关键词 | DISCONTINUITY EMBEDDED APPROACH ; FINITE-ELEMENT ; MODEL ; FRACTURE ; LENGTH |
| 资助项目 | Major Special Projects of the National Defense Science and Technology Bureau |
| 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 |
| 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,&Feng C.(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. |
入库方式： OAI收割
来源：力学研究所
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