Power law singularity of catastrophic rupture in heterogeneous media
文献类型：会议论文
| 作者 | Hao SW(郝圣旺) ; Lu MF; Ke FJ(柯孚久); Xia MF(夏蒙芬); Bai YL(白以龙)
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| 出版日期 | 2009 |
| 会议名称 | Mesomechanics 2009 Conference |
| 会议日期 | JUN 24-26, 2009 |
| 会议地点 | Oxford, ENGLAND |
| 通讯作者 | Bai, YL (reprint author), CAS, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | Catastrophic rupture in heterogeneous media, such as earthquake in crust, has long been a topic of scientific and societal importance. However, there has been no reliable approach to its prediction. Recently, our experimental study of rocks unveiled a power law singularity ahead of catastrophic rupture, namely the response of the rock specimen R (the ratio of the increments of sample deformation u and controlling crosshead displacement U) can be expressed as R similar to (1-U/U(F)) (-beta) with beta = 0.51+/-0.10 (mean+/-s.d.) ahead of the catastrophic rupture U(F). Numerical simulations also demonstrate the power law singularity ahead of catastrophic rupture. Theoretical analysis gives the power law singularity with the critical exponent beta = 1/2. In addition, other tests with cement specimens showing gradual failure without catastrophic rupture do not demonstrate such a singularity. (C) 2009 Elsevier B.V. All rights reserved |
| 收录类别 | CPCI-S ; EI |
| 会议网址 | 10.1016/j.proeng.2009.06.031 |
| 会议录 | MESOMECHANICS 2009
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| 会议录出版者 | ELSEVIER SCIENCE BV |
| 会议录出版地 | AMSTERDAM |
| 语种 | 英语 |
| WOS记录号 | WOS:000275988600030 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58882]  |
| 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,Lu MF,Ke FJ,et al. Power law singularity of catastrophic rupture in heterogeneous media[C]. 见:Mesomechanics 2009 Conference. Oxford, ENGLAND. JUN 24-26, 2009.10.1016/j.proeng.2009.06.031. |
入库方式： OAI收割
来源：力学研究所
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