| Amorphous alloy reinforced Whipple shield structure | |
Huang X(黄鑫); Ling Z(凌中); Liu ZD; Zhang HS(张虎生) ; Dai LH(戴兰宏); Dai, LH; Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
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| Source Publication | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
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| 2012-04-01 | |
| Volume | 42Pages:1-10 |
| ISSN | 0734-743X |
| Abstract | In this paper, a new concept space shield structure, namely amorphous alloy reinforced Whipple shield structure, is proposed. A series of experiments have been performed on this new Whipple shield structure which consists of an amorphous alloy reinforced bumper and an LY12 Al (similar to 2024 Al alloy) rear wall using two-stage light-gas gun at impact velocities of 3.5 km/s and 5.5 km/s. Damages including penetration hole in the front bumper and craters on the rear wall have been studied, and it is found that the protective capability of Whipple shield was improved by replacing LY12 Al alloy bumper with Fe-based amorphous alloy reinforced bumper, especially at low impact velocity of 3.5 km/s. A dimensional analysis of the parameters involved in the hypervelocity impact indicates that the coating material with higher density, lower specific heat and not very high melting temperature is helpful for better performance of the new shields. Wave propagation in the projectile and bumper is discussed, and the shock wave strength and temperature rise are calculated, it is found that the amorphous alloy reinforced bumper can produce higher shock pressures and induce higher temperature rise in the projectile. Thus, our preliminary research shows some positive indications that the new Whipple shield structure may provide higher protection level than the traditional one. |
| Keyword | Hypervelocity Impact Amorphous Alloy Metallic Glass Whipple Shield Ballistic Limit Equations Bulk Metallic Glasses Hypervelocity Impact Debris Clouds Electrothermal Explosion Spacecraft Fracture Coatings Powders |
| Subject Area | 冲击动力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000301216100001 |
| Funding Organization | Financial support is from the NSFC (Grants Nos.10872206, 10725211, 11021262, 11002144, and 11132011), the National Natural Science Foundation of China-NSAF. Grant No: 10976100, the National Key Basic Research Program of China (Grant No. 2009CB724401). |
| Department | LNM冲击动力学与新型材料力学性能 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46667 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Dai, LH; Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Huang X,Ling Z,Liu ZD,et al. Amorphous alloy reinforced Whipple shield structure[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2012,42:1-10. |
| APA | 黄鑫.,凌中.,Liu ZD.,张虎生.,戴兰宏.,...&Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China..(2012).Amorphous alloy reinforced Whipple shield structure.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,42,1-10. |
| MLA | 黄鑫,et al."Amorphous alloy reinforced Whipple shield structure".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 42(2012):1-10. |
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