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Identification of Damage Mode of High-speed Impact Target Based on PVDF Piezoelectric Film
Instruments and Experimental Techniques  (IF0.573),  Pub Date : 2021-05-26, DOI: 10.1134/s002044122103026x
Kai Guo, Enling Tang, Liping He, Yafei Han, Chuang Chen, Mengzhou Chang


As the space environment has deteriorated, it is necessary to monitor the impact events of space debris on orbiting spacecraft. The PVDF piezoelectric film release charge by the impact and its response is fast. The rest of the PVDF film can be re-measured. It can be used to detect space debris impacting spacecraft events, which has obvious advantages in real-time space detection and sensing. In this paper, penetration and cratering experiments of the target were carried out. The projectile directly high-speed impacted the target with PVDF piezoelectric film by the light gas gun loading. The results show that the relationship between damage mode and response characteristics is obtained. Based on the time-of-flight method, the velocity of the projectile and the time of action in the target are analyzed. The response signals of the penetration and cratering experiments are compared and analyzed, which can be used to identify the damage mode of the target plate.