Dislocations emission and crack extension at the atomistic crack tip in body-centered-cubic metal Mo
文献类型：期刊论文
| 作者 | Tang QH(汤奇恒) ; Wang ZQ(王自强)
|
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 1999 |
| 卷号 | 14期号:10页码:4035-4043 |
| ISSN号 | 0884-2914 |
| 通讯作者 | Tang, QH (reprint author), Chinese Acad Sci, LNM Inst Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | The behaviors of a crack in body-centered-cubic metal Mo under different loading modes were studied using the molecular dynamics method. Dislocation emission was observed near the crack tip in response to mode II loading with theta = 0 degrees in which theta is the inclination angle of the slip plane with respect to the crack plane, and two full dislocations were observed at the stress level of K-II = 1.17 MPa m(1/2) without any evidence of crack extension. Within the range of 0 degrees less than or equal to theta less than or equal to 45 degrees, crack extension was observed in response to mode I loading, and the effect of crystal orientation on the crack propagation was studied, The crack propagated along the [111] slip direction without any evidence of dislocations emission. |
| 学科主题 | 力学 |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | NUCLEATION ; FRACTURE ; BRITTLE ; BEHAVIOR ; DUCTILE ; SIMULATION ; CRITERIA ; GEOMETRY ; CLEAVAGE ; CRYSTALS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000083163700031 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/16876]  |
| 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. Dislocations emission and crack extension at the atomistic crack tip in body-centered-cubic metal Mo[J]. Journal of Materials Research,1999,14(10):4035-4043. |
| APA | 汤奇恒,&王自强.(1999).Dislocations emission and crack extension at the atomistic crack tip in body-centered-cubic metal Mo.Journal of Materials Research,14(10),4035-4043. |
| MLA | 汤奇恒,et al."Dislocations emission and crack extension at the atomistic crack tip in body-centered-cubic metal Mo".Journal of Materials Research 14.10(1999):4035-4043. |
入库方式： OAI收割
来源：力学研究所
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