| Hypervelocity impact of the icy droplet on al shell at nanoscale:A molecular dynamics probe |
| 其他题名 | 冰滴在宇宙速度下与航天铝壳结构超高速撞击的分子动力学模拟
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| Yuan QZ(袁泉子) ; Zhao YP(赵亚溥)
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| 发表期刊 | 宁波大学学报(理工版)/JOURNAL OF NINGBO UNIVERSITY (NSEE)
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| 2012-01-10
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| 卷号 | 25期号:1页码:94-97 |
| ISSN | 1001-5132
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| 摘要 | Large-scale molecular dynamics (MD) simulations are conducted to investigate the hypervelocity impact of the icy droplet on spacecraft Al shell at the atomic level. The velocity of the droplet is set to move at a typical cosmic speed. Part of the kinetic energy of the droplet is converted to thermal energy, resulting in a sudden increase of the temperature. With the increase of the droplet speed, the aluminum plate experiences elastic, plastic deformation, melting and finally be penetrated by the droplet. The formation and dynamic behavior of a debris cloud is observed and investigated in the simulations. |
| 其他摘要 | 采用大规模分子动力学模拟,从原子层次探索了冰滴高速撞击航天铝壳结构的动态过程.冰滴的速度设置为典型的宇宙速度.在高速撞击时,部分动能转化为热能,使得撞击点附近迅速升温.随着撞击速度的提高,铝壳经历了弹性变形、塑性变形、冲击融化,最后被穿透的过程.在分子动力学模拟中,清楚地观测了碎片云的形成和动态行为. |
| 关键词 | 超高速撞击
分子动力学模拟
碎片云
冰滴
Hypervelocity Impact
Molecular Dynamics
Debris Cloud
Icy Droplet
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| 学科领域 | 极端条件下的材料和结构
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| URL | 查看原文
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| 语种 | 英语
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| 项目资助者 | Supported by the National Natural Science Foundation of China(11032001,11011120245); Russian Foundation for Basic Research(11-01-91217)
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| 课题组名称 | LNM纳/微系统力学与物理力学
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/46389
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Zhao YP(赵亚溥) |
推荐引用方式
GB/T 7714 |
Yuan QZ,Zhao YP. Hypervelocity impact of the icy droplet on al shell at nanoscale:A molecular dynamics probe[J]. 宁波大学学报(理工版)/JOURNAL OF NINGBO UNIVERSITY (NSEE),2012,25,1,:94-97.
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| APA |
袁泉子,&赵亚溥.(2012).Hypervelocity impact of the icy droplet on al shell at nanoscale:A molecular dynamics probe.宁波大学学报(理工版)/JOURNAL OF NINGBO UNIVERSITY (NSEE),25(1),94-97.
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| MLA |
袁泉子,et al."Hypervelocity impact of the icy droplet on al shell at nanoscale:A molecular dynamics probe".宁波大学学报(理工版)/JOURNAL OF NINGBO UNIVERSITY (NSEE) 25.1(2012):94-97.
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