Knowledge Management System of Institue of Mechanics, CAS
| Damage evaluation and damage localization of rock | |
Xu XH(许向红) ; Ma SP; Xia MF(夏蒙棼); Ke FJ(柯孚久); Bai YL(白以龙); Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
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| Source Publication | Theoretical and Applied Fracture Mechanics
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| 2004 | |
| Volume | 42Issue:2Pages:131-138 |
| ISSN | 0167-8442 |
| Abstract | 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. |
| Keyword | Damage Localization Critical Sensitivity Deformation |
| DOI | 10.1016/j.tafmec.2004.08.002 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000224950900002 |
| WOS Keyword | DEFORMATION |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/33739 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| Recommended Citation 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,&Bai, YL .(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. |
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