IMECH-IR  > 力学所知识产出(1956-2008)
Critical Sensitivity and Trans-Scale Fluctuations in Catastrophic Rupture
Xia MF(夏蒙棼); Wei YJ(魏宇杰); Ke FJ(柯孚久); Bai YL(白以龙); Xia, MF (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
Source PublicationPure and Applied Geophysics
2002
Volume159Issue:10Pages:2491-2509
ISSN0033-4553
AbstractRupture in the heterogeneous crust appears to be a catastrophe transition. Catastrophic rupture sensitively depends on the details of heterogeneity and stress transfer on multiple scales. These are difficult to identify and deal with. As a result, the threshold of earthquake-like rupture presents uncertainty. This may be the root of the difficulty of earthquake prediction. Based on a coupled pattern mapping model, we represent critical sensitivity and trans-scale fluctuations associated with catastrophic rupture. Critical sensitivity means that a system may become significantly sensitive near catastrophe transition. Trans-scale fluctuations mean that the level of stress fluctuations increases strongly and the spatial scale of stress and damage fluctuations evolves from the mesoscopic heterogeneity scale to the macroscopic scale as the catastrophe regime is approached. The underlying mechanism behind critical sensitivity and trans-scale fluctuations is the coupling effect between heterogeneity and dynamical nonlinearity. Such features may provide clues for prediction of catastrophic rupture, like material failure and great earthquakes. Critical sensitivity may be the physical mechanism underlying a promising earthquake forecasting method, the load-unload response ratio (LURR).
Subject Area力学
DOI10.1007/s00024-002-8744-5
Indexed BySCI
Language英语
WOS IDWOS:000177938400016
WOS KeywordSELF-ORGANIZED CRITICALITY ; EVOLUTION-INDUCED CATASTROPHE ; EARTHQUAKE CYCLES ; MATERIAL FAILURE ; MODEL ; FAULT ; STRENGTH
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/17580
Collection力学所知识产出(1956-2008)
Corresponding AuthorXia, MF (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Xia MF,Wei YJ,Ke FJ,et al. Critical Sensitivity and Trans-Scale Fluctuations in Catastrophic Rupture[J]. Pure and Applied Geophysics,2002,159(10):2491-2509.
APA 夏蒙棼,魏宇杰,柯孚久,白以龙,&Xia, MF .(2002).Critical Sensitivity and Trans-Scale Fluctuations in Catastrophic Rupture.Pure and Applied Geophysics,159(10),2491-2509.
MLA 夏蒙棼,et al."Critical Sensitivity and Trans-Scale Fluctuations in Catastrophic Rupture".Pure and Applied Geophysics 159.10(2002):2491-2509.
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