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	Energy transfer under impact load studied by molecular dynamics simulation
	Chen, Ruling ; Luo, Jianbin ; Guo, Dan ; Lu, Xinchun
	2010-10-12 ; 2010-10-12
关键词	Silica cluster impact Cluster size Incidence angle Dissipation of energy Molecular dynamics simulation Nanoparticles Numerical method CLUSTER ION IMPACT O MIXED SYSTEMS SURFACE EMISSION BOMBARDMENT DAMAGE SI IMPLANTATION GRAPHITE SILICON Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary
中文摘要	The process of amorphous silica clusters impact on a crystal silicon substrate is studied by molecular dynamics simulation, focusing on the energy transfer between clusters and the substrate under different impact conditions such as cluster size, impact velocity, and incidence angle. The impact process is divided into cluster deformation stage, cluster resilience stage, and cluster rebound stage according to the courses of energy change during the impact process. The simulation elucidates that the time of impact process of every cluster is only related to cluster size and is independent of impact velocity and incidence angle. The translational energy loss of the cluster and the potential energy increment of the substrate during cluster deformation stage, and the dissipation energy of system are independent of cluster size under the same impact energy and incidence angle. And the translational energy loss of the cluster during cluster rebound stage changes from energy absorption to energy release after the incidence angle becomes more than 60A degrees. The rotational energy of the cluster may be omitted when the incidence angle is less than 15A degrees. The ratios of the rotational energy increment of the cluster, the kinetic energy increment, and the potential energy increment of the substrate to the translational energy loss of the cluster are obviously influenced by impact conditions. And the ratios of the increment of the other categories of energy to the translational energy loss of the cluster are not sensitive to impact conditions.
语种	英语 ; 英语
出版者	SPRINGER ; DORDRECHT ; VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80429]
专题	清华大学
推荐引用方式 GB/T 7714	Chen, Ruling,Luo, Jianbin,Guo, Dan,et al. Energy transfer under impact load studied by molecular dynamics simulation[J],2010, 2010.
APA	Chen, Ruling,Luo, Jianbin,Guo, Dan,&Lu, Xinchun.(2010).Energy transfer under impact load studied by molecular dynamics simulation..
MLA	Chen, Ruling,et al."Energy transfer under impact load studied by molecular dynamics simulation".(2010).

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