Damage evaluation and damage localization of rock
文献类型：会议论文
| 作者 | Xu XH(许向红) ; Ma SP; Xia MF(夏蒙棼); Ke FJ(柯孚久); Bai YL(白以龙)
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| 出版日期 | 2004 |
| 会议名称 | Proceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application |
| 会议日期 | June 7, 2004 - June 11, 2004 |
| 会议地点 | Cesena, Italy |
| 关键词 | Critical sensitivity Damage evolution Damage localization Uniaxial compression |
| 中文摘要 | To properly evaluate damage accumulation and to foresee the failure due to damage evolution are prerequisite for effective maintenance of civil engineering and to avoid disaster. Based on statistical mesoscopic damage mechanics, it was revealed that there are three stages in the process of deformation, damage and failure of multiscale heterogeneous elastic-brittle medium. These are uniformly distributed damage, localized damage and catastrophic failure. In order to identify the transitions from scattering damage to macroscopically localized one, a condition for damage localization was given. The experiments of rock under uniaxial compression with the aid of observations of acoustic emission and speckle correlation do support the concept of localization. This provides a potential approach to properly evaluate damage accumulation in practice. In addition, it is found in the experiments that catastrophic failure displays critical sensitivity. This gives a helpful clue to the prediction of catastrophic failure. |
| 收录类别 | EI |
| 会议录 | Proceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application
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| 语种 | 英语 |
| ISBN号 | 8879997653 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60324]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Xu XH,Ma SP,Xia MF,et al. Damage evaluation and damage localization of rock[C]. 见:Proceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application. Cesena, Italy. June 7, 2004 - June 11, 2004. |
入库方式： OAI收割
来源：力学研究所
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