| Autor: |
Ke-Bin Zhang, Wen-Bin Li, Yu Zheng, Wen-Jin Yao, Chang-Fang Zhao |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Defence Technology, Vol 26, Iss , Pp 143-156 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2214-9147 |
| DOI: |
10.1016/j.dt.2022.06.009 |
| Popis: |
Based on the 60 mm artillery grenade, a slow-release structure was designed to reduce the severity of ammunitions response to accidental thermal stimulation and improve the thermal stability of ammunitions. The slow-release structure was made of high-density polyethylene (HDPE) and connected the fuse and the projectile body through internal and external threads. To study the safety of the slow-release structure under artillery launching overload, mechanical analysis of the slow-release structure was simulated via finite element analysis (FEA). The impacts of various factors (e.g., fuse mass, number of threads, and nominal diameter of internal threads of the slow-release structure) on the connection strength of the slow-release structure were studied. A strength-prediction model based on the fuse mass and internal thread parameters was established by fitting the maximum effective stress of the slow-release structure. This led to good prediction results. In conclusion, this study provides references and theoretical support for the design of thermal protection structures insensitive to ammunition. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
