| An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives | |
Wang, Haozhe1; Yu, Anfeng1; Feng C(冯春)2,3 ; Ling, Xiaodong1; Chen, Guoxin1; Gu, Meng1; Zhu XG(朱心广)2,3
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| Corresponding Author | Yu, Anfeng([email protected]) ; Feng, Chun([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
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| 2022-03-01 | |
| Volume | 161Pages:12 |
| ISSN | 0734-743X |
| Abstract | The fragment field distribution of shell-bearing explosives is important to ensure safety during the production and storage of inflammable and explosive materials. This study uses the continuous-discontinuous element method (CDEM) for the first time to solve the problems encountered when simulating shell-bearing explosives such as natural fragment generation and cross-scale calculation. With the coupling computation of the finitediscrete element as its core, we design the natural fragment discrete unit generation algorithm by utilizing the shell equivalent layer-detonation product dissipation model based on continuous mechanics, dynamic drag flight calculations, and efficient point-face and face-face contact algorithms. Thus, a method has been established for the complete simulation of a full time-space field for natural fragments (from burst to fragment landing) of shelled explosives. In particular, CDEM, takes into account the complex situation wherein multiple explosions are initiated due to the shelled explosives being stacked on one another during storage. Comparisons with commercial software (AUTODYN) calculations and test data validate the accuracy and efficiency of the method, thereby providing adequate conditions for performing a refined study on fragment distributions and safe distances associated with shell explosives. |
| Keyword | Natural fragments field Stacked shell-bearing explosives Continuous-discontinuous element method Cross-Scale Efficient Simulation |
| DOI | 10.1016/j.ijimpeng.2021.104099 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000788761100003 |
| WOS Keyword | DISCONTINUITY EMBEDDED APPROACH |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China[12002392] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Yu, Anfeng ; Feng, Chun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89055 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.SINOPEC Res Inst Safety Engn Co Ltd, State Key Lab Chem Safety Control, Qingdao, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China; 3.Univ Chinese Acad Sci UCAS, Sch Engn Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Haozhe,Yu, Anfeng,Feng C,et al. An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2022,161:12.Rp_Au:Yu, Anfeng, Feng, Chun |
| APA | Wang, Haozhe.,Yu, Anfeng.,冯春.,Ling, Xiaodong.,Chen, Guoxin.,...&朱心广.(2022).An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,161,12. |
| MLA | Wang, Haozhe,et al."An Efficient CDEM-based method to calculate full time-space natural fragment field of shell-bearing explosives".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 161(2022):12. |
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| Jp2022FA508_2022_An （11342KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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