Predicting time-to-failure in rock extrapolated from secondary creep
文献类型：期刊论文
| 作者 | Hao SW(郝圣旺) ; Zhang BJ; Tian JF; Elsworth D
|
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2014-03 |
| 卷号 | 119期号:3页码:1942-1953 |
| 通讯作者邮箱 | haoshengwang@gmail.com |
| ISSN号 | 2169-9313 |
| 产权排序 | [Hao, Sheng-Wang; Zhang, Bao-Ju; Tian, Ji-Feng] Yanshan Univ, Sch Civil Engn & Mech, Qinhuangda, Peoples R China; [Hao, Sheng-Wang; Elsworth, Derek] Penn State Univ, Ctr G3, University Pk, PA 16802 USA; [Hao, Sheng-Wang; Elsworth, Derek] Penn State Univ, EMS Energy Inst, University Pk, PA 16802 USA; [Hao, Sheng-Wang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China |
| 通讯作者 | Hao, SW (reprint author), Yanshan Univ, Sch Civil Engn & Mech, Qinhuangda, Peoples R China. |
| 合作状况 | 国际 |
| 中文摘要 | Stress relaxation experiments are reported that culminate in energetic failure in rocks analogous to the loading cycle and subsequent localization or reactivation on brittle faults embedded in an elastic medium. Universally, rapid primary deformation arrests and transitions into a long secondary deformation phase that ultimately accelerates to catastrophic rupture. Primary deformation (u) conforms to Andrade's law as du/dt similar to (t(c) - t(0))(theta) with a standard exponent of 2/3. In the long, and readily observable, secondary phase, the samples both deform and analogously shed load near linearly in time. This stress relaxation rate exhibits a robust power law dependency with time-to-rupture and exhibits the same 2/3 power law exponent observed in the primary phase. Similarly, the brittle strain energy released in the tertiary collapse scales with a normalized secondary stress relaxation rate. Together, these observations suggest a way to predict both the timing of rupture and its energetics from the observed stress (or strain) rate during the secondary relaxation stage. |
| 学科主题 | Geochemistry & Geophysics |
| 分类号 | 一类 |
| 收录类别 | SCI |
| 资助信息 | This work is supported by National Basic Research Program of China (grant 2013CB834100). We acknowledge useful comments of Editor, Tom Parsons, and two anonymous reviewers. |
| 原文出处 | http://dx.doi.org/10.1002/2013JB010778 |
| 语种 | 英语 |
| WOS记录号 | WOS:000336844700023 |
| 公开日期 | 2014-07-03 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48872]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Hao SW,Zhang BJ,Tian JF,et al. Predicting time-to-failure in rock extrapolated from secondary creep[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2014,119(3):1942-1953. |
| APA | Hao SW,Zhang BJ,Tian JF,&Elsworth D.(2014).Predicting time-to-failure in rock extrapolated from secondary creep.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,119(3),1942-1953. |
| MLA | Hao SW,et al."Predicting time-to-failure in rock extrapolated from secondary creep".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 119.3(2014):1942-1953. |
入库方式： OAI收割
来源：力学研究所
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