Damage evaluation and damage localization of rock
文献类型：期刊论文
| 作者 | Xu XH(许向红) ; Ma SP; Xia MF(夏蒙棼); Ke FJ(柯孚久); Bai YL(白以龙)
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| 刊名 | Theoretical and Applied Fracture Mechanics
 |
| 出版日期 | 2004 |
| 卷号 | 42期号:2页码:131-138 |
| 通讯作者邮箱 | baiyl@lnm.imech.ac.cn |
| 关键词 | Damage Localization Critical Sensitivity Deformation |
| ISSN号 | 0167-8442 |
| 通讯作者 | Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | Knowledge of damage accumulation and corresponding failure evolution are prerequisite for effective maintenance of civil engineering so as to avoid disaster. Based on statistical mesoscopic damage mechanics, it was revealed that there are three stages in the process of deformation, damage and failure of multiscale heterogeneous elastic-brittle medium. These are uniformly distributed damage, localized damage and catastrophic failure. In order to identify the transitions from scattering damage to macroscopically localized one, a condition for damage localization was given. The experiments of rock under uniaxial compression with the aid of observations of acoustic emission and speckle correlation do support the concept of localization. This provides a potential approach to properly evaluate damage accumulation in practice. In addition, it is found in the experiments that catastrophic failure displays critical sensitivity. This gives a helpful clue to the prediction of catastrophic failure. (C) 2004 Elsevier Ltd. All rights reserved. |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | DEFORMATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000224950900002 |
| 公开日期 | 2009-08-03 ; 2010-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/33739]  |
| 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 | Xu XH,Ma SP,Xia MF,et al. Damage evaluation and damage localization of rock[J]. Theoretical and Applied Fracture Mechanics,2004,42(2):131-138. |
| APA | 许向红,Ma SP,夏蒙棼,柯孚久,&白以龙.(2004).Damage evaluation and damage localization of rock.Theoretical and Applied Fracture Mechanics,42(2),131-138. |
| MLA | 许向红,et al."Damage evaluation and damage localization of rock".Theoretical and Applied Fracture Mechanics 42.2(2004):131-138. |
入库方式： OAI收割
来源：力学研究所
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