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| High Velocity Impact Experiment Technique at Elevated Temperature |
| Received:August 21, 2015 Revised:November 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.11.002 |
| KeyWord:elevated temperature high velocity impact thin cylinder |
| Author | Institution |
| XU Wei-fang |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| ZHANG Fang-ju |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| HU Wen-jun |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| HU Shao-quan |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| LI Shang-ming |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| CHEN Jun-hong |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| SUN Ai-jun |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
| LYU Ming |
1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China; 2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang , China |
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| Abstract: |
| Objective To build a high velocity impact experiment technique of structures at elevated temperature. Methods Key issues affecting heating, insulating, impact velocity and gesture were studied based on theory and experiment. Based on the combination of the subcalibre technique and heater technique, the technique of heating, insulating, and accelerating sample was built. The temperature was measured indirectly. And the gesture controlling technique was combined with the target to control the gesture of sample. High speed photography was used to measure the gesture. All the techniques were validated by cylinder impact tests at elevated temperature and high velocity. Results A technique which integrated heating, insulating, accelerating and gesture controlling was built. And the impact dynamical responses of vary dimensions thin cylinders were gained. In front impact, the impacting end was upset while the other end was contracted, and the cave of impacting end was shallower than the opposite end. In lateral impact, the cylinder was saddle-like. In angle impact, it deformed into a wedge shape. With the decrease of cylinder strength and rigidity, deformation of the cylinder increased with overall collapse and many folds. Conclusion The experimental technique is effective, and could be used to study high velocity impact responses of structures at high temperature. |
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