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Damage Localization, Sensitivity of Energy Release and the Catastrophe Transition | |
Li HL(李晖凌); Jia ZK; Bai YL(白以龙); Xia MF(夏梦棼); Ke FJ(柯孚久); Li, HL (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China. | |
发表期刊 | Pure and Applied Geophysics |
2002 | |
卷号 | 159期号:9页码:1933-1950 |
ISSN | 0033-4553 |
摘要 | Large earthquakes can be viewed as catastrophic ruptures in the earth’s crust. There are two common features prior to the catastrophe transition in heterogeneous media. One is damage localization and the other is critical sensitivity; both of which are related to a cascade of damage coalescence. In this paper, in an attempt to reveal the physics underlying the catastrophe transition, analytic analysis based on mean-field approximation of a heterogeneous medium as well as numerical simulations using a network model are presented. Both the emergence of damage localization and the sensitivity of energy release are examined to explore the inherent statistical precursors prior to the eventual catastrophic rupture. Emergence of damage localization, as predicted by the mean-field analysis, is consistent with observations of the evolution of damage patterns. It is confirmed that precursors can be extracted from the time-series of energy release according to its sensitivity to increasing crustal stress. As a major result, present research indicates that the catastrophe transition and the critical point hypothesis (CPH) of earthquakes are interrelated. The results suggest there may be two cross-checking precursors of large earthquakes: damage localization and critical sensitivity. |
学科领域 | 力学 |
DOI | 10.1007/s00024-002-8716-9 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000177662900003 |
关键词[WOS] | CRITICAL-POINT ; FAILURE ; EVOLUTION ; BEHAVIOR ; MODEL |
WOS研究方向 | Geochemistry & Geophysics |
WOS类目 | Geochemistry & Geophysics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/17465 |
专题 | 力学所知识产出(1956-2008) |
通讯作者 | Li, HL (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China. |
推荐引用方式 GB/T 7714 | Li HL,Jia ZK,Bai YL,et al. Damage Localization, Sensitivity of Energy Release and the Catastrophe Transition[J]. Pure and Applied Geophysics,2002,159,9,:1933-1950. |
APA | 李晖凌,Jia ZK,白以龙,夏梦棼,柯孚久,&Li, HL .(2002).Damage Localization, Sensitivity of Energy Release and the Catastrophe Transition.Pure and Applied Geophysics,159(9),1933-1950. |
MLA | 李晖凌,et al."Damage Localization, Sensitivity of Energy Release and the Catastrophe Transition".Pure and Applied Geophysics 159.9(2002):1933-1950. |
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