| 准脆性固体的灾变破坏及其物理前兆 |
| |
| 引用本文： | 郝圣旺,白以龙,夏蒙棼,柯孚久.准脆性固体的灾变破坏及其物理前兆[J].中国科学:物理学 力学 天文学,2014(12):1262-1274. |
| |
| 作者姓名： | 郝圣旺 白以龙 夏蒙棼 柯孚久 |
| |
| 作者单位： | 燕山大学建筑工程与力学学院;中国科学院力学研究所非线性力学国家重点实验室;北京大学物理学院;北京航空航天大学应用物理系; |
| |
| 基金项目： | 国家重点基础研究发展计划资助项目(编号:2013CB834100) |
| |
| 摘 要： | 准脆性固体的灾变破坏如地震、滑坡、地下工程的失效等给人类生产和生活带来了巨大影响,由于其非线性演化过程的复杂性,这类灾变破坏的触发机理与预测方法一直是困扰工程界和科学界的难题.我们在对固体灾变破坏中的几个基本问题:灾变破坏的机理、无序非均匀效应、局部化行为和响应量的前兆特征进行了阐述,并对其研究进展和研究现状进行了评述,分析了准脆性固体损伤的非线性演化和局部化、灾变破坏前兆研究面临的困难和机遇.
|
| 关 键 词： | 灾变破坏 非均匀 局部化 前兆 地震 |
Catastrophic rupture of quasi-brittle solids and its precursors |
| |
| Institution: | HAO ShengWang, BAI YiLong, XIA MengFen ＆ KE FuJiu( 1 School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China; 2 State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences Beijing 100190, China; 3 Department of Physics, Peking University, Beijing 100871, China; 4Department of Applied Physics, Beihang University, Beijing 100191, China) |
| |
| Abstract: | Catastrophic rupture of brittle solids is very significant in, such as earthquakes, landslides, pillar failures, the movement of underground works and instability of structure. However, there is still a limited understanding of the triggering mechanism in natural catastrophic ruptures and their prediction. The principal purpose of this paper is to present a comprehensive demonstration on four key points, i.e., mechanism of catastrophic rupture, effects of heterogeneity, localization and physical precursors. Based on the analysis of the progress on them, we propose the current difficulties and potential strategies in research of damage nonlinear evolution, localization and catastrophic precursors. |
| |
| Keywords: | catastrophic rupture heterogeneous localization precursor earthquake |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
