| 查看: 219 | 回复: 0 | ||
| 当前主题已经存档。 | ||
[资源]
纳米线的分子静力学和分子动力学研究
|
||
|
Is the molecular statics method suitable for the study of nanomaterials? A study case of nanowires Nanotechnology 18 (2007) 315701 (7pp) Abstract Both molecular statics and molecular dynamics methods were employed to study the mechanical properties of copper nanowires. The size effect on both elastic and plastic properties of square cross-sectional nanowire was examined and compared systematically using two molecular approaches. It was found consistently from both molecular methods that the elastic and plastic properties of nanowires depend on the lateral size of nanowires. As the lateral size of nanowires decreases, the values of Young’s modulus decrease and dislocation nucleation stresses increase. However, it was shown that the dislocation nucleation stress would be significantly influenced by the axial periodic length of the nanowire model using the molecular statics method while molecular dynamics simulations at two distinct temperatures (0.01 and 300 K) did not show the same dependence. It was concluded that molecular statics as an energy minimization numerical scheme is quite insensitive to the instability of atomic structure especially without thermal fluctuation and might not be a suitable tool for studying the behaviour of nanomaterials beyond the elastic limit. http://www.divshare.com/download/1849656-fc3 [search]纳米线[/search] http://www.divshare.com/download/1849656-fc3 [ Last edited by jackchen145 on 2007-9-4 at 17:28 ] |
回复此楼» 猜你喜欢
修改论文，如何借助其他力量？
已经有4人回复
-
中山大学潘越教授课题组2027级推免硕士研究生招生 新增一个专业医学技术名额
已经有21人回复
-
无机化学论文润色/翻译怎么收费?
已经有132人回复
-
哈尔滨工程大学国家级青年人才-27年申请考核制博士招生（材料、化学、生物医学专业）
已经有13人回复
-
HRTEM/原位TEM/HRSTEM检测｜价格优·周期短·可加急
已经有0人回复
-
大家平时也可以交流下
已经有1人回复
-
ELSEVIER旗下投稿decision in process后with editor，应该如何理解
已经有45人回复
» 本主题相关商家推荐: (我也要在这里推广)
