中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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)
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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