Open AccessObservation of Debris Clouds Generated by Hypervelocity Impact of Copper Jets with Thin Aluminum Plats
Author(s) -
Wanyi Jiao,
Lai Chang,
Jui-Hung Yuan,
Jiaxing Su,
Yongquan Gan,
Hongliang He,
Chi Xiong
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1855/1/012041
Subject(s) - hypervelocity , debris , space debris , streak , projectile , framing (construction) , aluminium , materials science , copper , optics , aerospace engineering , geology , physics , astronomy , metallurgy , meteorology , engineering , structural engineering
With high kinetic energy and excellent penetration performance, metal jets have been widely used in the defence industry. When a thin plate is impacted by a metal jet with a velocity higher than 3 km/s, debris clouds will be generated at both sides of the plates. However, compared with the debris clouds generated by hypervelocity impact of projectiles, debris clouds generated by hypervelocity jets is rarely observed. In this paper, the utility of ultrahigh-speed simultaneous framing and streak photography technology is applied in the experiment of copper jets impact thin aluminum plates at hypervelocity. Debris clouds and front edges of shock waves are clearly observed and recognized after using newly developed technology to effectively restrain excessive exposure caused by intensive self-illumination in the experiment. From framing and streak pictures, the process of jets impact targets is comprehensively and completely recorded and the velocities of the jet and the debris cloud are obtained using the methods of data processing developed in present paper.