Correlative reference model and molecular dynamics simulation of dislocation emission process
文献类型：期刊论文
| 作者 | Tang QH(汤奇恒) ; Wang ZQ(王自强)
|
| 刊名 | Computational Materials Science
 |
| 出版日期 | 1998 |
| 卷号 | 12期号:2页码:73-83 |
| ISSN号 | 0927-0256 |
| 通讯作者 | Tang, QH (reprint author), Chinese Acad Sci, Inst Mech, LNM, 15 Zhong Guan Cun Rd, Beijing 100080, Peoples R China. |
| 中文摘要 | A correlative reference model for computer molecular dynamics simulations is proposed. Based on this model, a flexible displacement boundary scheme is introduced and the dislocations emitted from a crack tip can continuously pass through the border of the inner discrete atomic region and pile up at the outer continuum region. The effect of the emitted dislocations within the plastic zone on the inner atomistic region can be clearly demonstrated. The simulations for a molybdinum crystal show that a full dislocation in a bcc crystal is dissociated into three partial dislocations and interaction between the crack and the emitted dislocations results in gradual decrease of the local stress intensity factor. |
| 学科主题 | 力学 |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | CRACK-TIP ; NUCLEATION |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000077552700001 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/16551]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Tang QH,Wang ZQ. Correlative reference model and molecular dynamics simulation of dislocation emission process[J]. Computational Materials Science,1998,12(2):73-83. |
| APA | 汤奇恒,&王自强.(1998).Correlative reference model and molecular dynamics simulation of dislocation emission process.Computational Materials Science,12(2),73-83. |
| MLA | 汤奇恒,et al."Correlative reference model and molecular dynamics simulation of dislocation emission process".Computational Materials Science 12.2(1998):73-83. |
入库方式： OAI收割
来源：力学研究所
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