Where, and How, Does a Nanowire Break?
| Autor: | Xing Yin, Dongxu Wang, Yunhong Liu, Jianwei Zhao, Sheng-yuan Deng, Shuai Liang, Shi Hu |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Condensed matter physics
Chemistry Mechanical Engineering Nanowire Bioengineering Fracture mechanics General Chemistry Strain rate Condensed Matter Physics Structural transformation Condensed Matter::Materials Science Molecular dynamics Classical mechanics Position (vector) General Materials Science Deformation (engineering) Necking |
| Zdroj: | Nano Letters. 7:1208-1212 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl0629512 |
| Popis: | Using molecular dynamics (MD) simulation, we studied the structural transformation and breaking mechanism of a single crystalline copper nanowire under continuous strain. At a certain strain rate, an ensemble of relaxed initial states of the nanowire can preferentially go through one or more paths of deformation. In each deformation path, disordered atoms can be generated at the specific positions of the nanowire, where necking and breaking take place afterward. Such a breaking position is not predetermined; multiple initial states lead to a strain-rate-dependent, statistical distribution of breaking positions. |
| Databáze: | OpenAIRE |
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