Experimental study of the Cryogenic Effect on Hypervelocity Impact Characteristics of Aluminum Alloy Whipple Structure
- Paper number
IAC-16,A6,3,4,x33323
- Coauthor
Prof. Zizheng GONG, China Academy of Space Technology (CAST), China
- Coauthor
Dr. Ming Li, China Academy of Space Technology (CAST), China
- Coauthor
Ms. Kunbo Xu, China
- Coauthor
Ms. Yan Cao, China
- Coauthor
Dr. Yongqiang Mou, China Academy of Space Technology, China
- Coauthor
Dr. Pinliang Zhang, China Academy of Space Technology, China
- Year
2016
- Abstract
The cryogenic effect on hypervelocity impact characteristics of aluminum alloy whipple structure were carried out by two-stage light gas gun at the ambient temperature -100℃, -50℃ and 20℃, respectively. Based on the experiments results, the different features about the size of perforation hole, debris clouds shape, rear wall damage characteristic and the bumper protection capabilities were analyzed. The results showed that the protection capabilities of aluminum alloy Whipple structure at -100℃ was increased 12% than at room temperature. In order to investigate the penetration process, numerical simulation using AUTODYN were made for the same configurations as the experiments. Also, the Molecular dynamics simulation were carried out to explain physical mechanism of cryogenic effect. This results has great reference value for engineering design of shield for spacecraft protection against space debris.
- Abstract document
- Manuscript document
IAC-16,A6,3,4,x33323.pdf (🔒 authorized access only).
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