Study on deformation characteristics of collision region of copper tube with guard ring driven by two head-on colliding detonation waves
-
摘要: 针对爆轰波对碰驱动下金属圆管对碰区易出现过早断裂的问题,以加环紫铜(T2)圆管作为研究对象,利用高速分幅摄影、脉冲X光照相、VISAR三种测试技术,对其在爆轰波对碰驱动下的变形及破坏过程进行了观测。实验结果显示:在紫铜圆管对碰部位增加保护环结构,可以有效推迟该部位圆管的破裂时间。但同时也发现:加保护环后圆管对碰区会出现射流状超前突起现象。由高速摄影结果与X光照相结果对比分析证实:射流状超前突起物质为圆管表面微喷颗粒与空气冲击波混合形成的雾状结构。另外,采用DYNA3D程序对实验模型进行了模拟,计算结果与实验结果符合较好。最后,利用DYNA3D程序就保护环倒角变化对金属圆管对碰区壳体破裂的影响特征进行了初步分析。Abstract: The deformation characteristics of copper tube with guard ring under two head-on collision detonation waves were experimentally researched. High-speed frame photography, pulsed X-ray radiography and VISAR interferometer were employed to record the expanding process, radius history and velocity history of the copper tube with guard ring. Experimental results show that guard ring can postpone the collision region shell to rupture. The jet-shaped protuberance was found on collision region of copper tube with guard ring. The jet-shaped protuberance consisted of mass ejection from free surface of copper tube and air shock. The DYNA3D code was utilized to simulate the expanding process of copper tube with guard ring. The calculated results and the experimental results are coincident. The LS-DYNA3D code was used to analyze the influence of guard rings fillet on deformation characteristics of metal tube.
期刊类型引用(8)
1. 贾进章,田秀媛. 瓦斯爆炸抑制研究进展及发展趋势. 安全与环境学报. 2025(01): 95-107 . 百度学术
2. 杨克,李雪瑞,纪虹,郑凯,邢志祥,蒋军成. 改性煤矸石-海藻酸钠粉体对管道内甲烷/空气爆炸的抑爆实验. 爆炸与冲击. 2024(07): 174-187 . 本站查看
3. 张保勇,崔嘉瑞,陶金,王亚军,秦艺峰,魏春荣,张迎新. 不同迎爆面结构的泡沫金属对甲烷气体爆炸传播阻隔性能的实验研究. 爆炸与冲击. 2023(02): 170-180 . 本站查看
4. 段征,路长,班成伟,刘金刚,郭洪江,李明月. 封闭支管条件下ABC干粉抑爆机制研究. 火工品. 2023(02): 72-76 . 百度学术
5. 徐景德,田思雨,张延炜,张亮. 瓦斯爆炸主动式阻隔爆技术研究进展. 华北科技学院学报. 2022(04): 71-77 . 百度学术
6. 乔征龙,马恒,邓立军. 基于Charlette模型的柔性障碍物对瓦斯爆炸的影响研究. 安全与环境学报. 2022(05): 2420-2427 . 百度学术
7. 段玉龙,杨燕铃,李元兵,裴蓓,姚新友,王硕,米红甫. 滑移装置抑制甲烷爆炸影响分析. 中国安全生产科学技术. 2021(04): 122-127 . 百度学术
8. 段玉龙,李元兵,杨燕铃,龙凤英,俞树威,黄俊,卜云兵. 细水雾协同滑动装置对甲烷/空气预混气体爆炸特性的影响. 高压物理学报. 2021(05): 182-188 . 百度学术
其他类型引用(5)
-
计量
- 文章访问数: 2878
- HTML全文浏览量: 129
- PDF下载量: 188
- 被引次数: 13