为研究某种注塑成型PMMA材料的爆炸切割特性，通过聚能切割索爆炸切割PMMA靶板试验得到最佳炸高范围，并结合工程实际进行多介质情况下的靶板切割试验，同时利用有限元仿真进行模拟计算。研究结果表明，随着炸高的增加，聚能切割索对PMMA靶板的侵彻能力先增大后减小，最佳炸高范围为1.5～3.0 mm；PMMA靶板爆炸切割的断裂主要由射流侵彻作用及层裂作用引起，其中射流侵彻作用占比约为56.5%，层裂作用占比约为43.5%。
In order to study the explosive cutting characteristics of a certain injection molded PMMA material, the optimal range of explosion height was obtained through linear shaped charge explosive cutting PMMA target plate experiments. Combined with engineering practice, target plate cutting experiments were carried out under multi medium conditions, and simulation calculations were conducted using finite element simulation. The research results indicate that as the explosion height increases, the penetration ability of linear shaped charge to PMMA target plate first increases and then decreases, and the optimal explosion height range is 1.5～3.0 mm; The fracture of PMMA target plate during explosive cutting is mainly caused by jet penetration and spallation. The proportion of jet penetration is about 56.5 %, and the proportion of spallation is about 43.5 %.
2024,46(16): 39-42 收稿日期：2023-10-16
DOI：10.3404/j.issn.1672-7649.2024.16.007
分类号：O383;TJ450.4
作者简介：邹德波（1995 – ），男，硕士，助理工程师，研究方向为水下发射技术
参考文献：
[1] 赵炳雄, 黄技, 陈志明. 有机玻璃材料在海洋工程结构物的应用现状与发展趋势综述[J]. 机电工程技术, 2023, 52(9): 25-30.
[2] A J X L , B P F L A , A X Y T . A simplified method for studying cyclic creep behaviors of deep-sea manned submersible viewport windows[J]. International Journal of Pressure Vessels and Piping, 2021(194-Pt. B): 104565.
[3] A Y K , A Y L , A C X , et al. Fractal damage and crack propagation of PMMA in multiple slit charge blasting[J]. Materials Today Communications, 2022, 31: 103249.
[4] 蒲俊州, 李征鸿, 姜国纯, 等. 炸高对RDX基聚能切割索爆破切割有机玻璃的影响研究[J]. 火工品, 2022(4): 21-26.
[5] 张宇卓, 赵铮. 基于爆炸切割试验的有机玻璃本构模型参数反演[J]. 爆炸与冲击, 2023, 43(5): 054201.
[6] 邹德波, 赵铮. 冲击强度对爆炸切割脆性材料的影响研究[J]. 兵器装备工程学报, 2021, 42(8): 100-105.
ZOU Debo, ZHAO Zheng. Study on influence of impact strength on explosive cutting of brittle materials[J]. Journal of Ordnance Equipment Engineering, 2021, 42(8): 100-105.
[7] 卡卢奇, 雅各布森韩礼. 弹道学: 枪炮弹药的理论与设计[M]. 北京: 国防工业出版社, 2014.
[8] KUMAR M, LADYMAN M K, MAI N, et al. Release of 1, 3, 5-trinitroperhydro-1, 3, 5-triazine (RDX) from polymer-bonded ex-plosives (PBXN-109) into water by artificial weathering[J]. Chemosphere, 2017, 169: 604-608.
[9] JANGID S K, SINGH M K, SOLANKI V J, et al. 1, 3, 5-trini-troperhydro-1, 3, 5-triazine(RDX) -based sheet explosive formula-tion with a hybrid binder system[J]. Propellants, Explosives, Py-rotechnics, 2016, 41(2): 377-382.
