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The dynamic response of a high-density polyethylene slow-release structure under launching overload
- Source :
- Defence Technology, Vol 26, Iss , Pp 143-156 (2023)
- Publication Year :
- 2023
- Publisher :
- KeAi Communications Co., Ltd., 2023.
-
Abstract
- 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.
Details
- Language :
- English
- ISSN :
- 22149147
- Volume :
- 26
- Issue :
- 143-156
- Database :
- Directory of Open Access Journals
- Journal :
- Defence Technology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.7d93440e33a4a7295ac69aeb4069e91
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.dt.2022.06.009