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1. Developments in detection of rock damage | |||
Peng Ruidong,Liu Hongbin,Wang Jianqiang,Ju Yang | |||
Mechanics 14 January 2011 | |||
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Abstract:How to quantificationally detect the damage of rocks is a key problem in damage mechanics for rocks, and it determined whether the damage theory of rocks could be brought into action in rock engineering. Detection techniques of rock damage were summarized and grouped into structural analysis approaches and feature measurement approaches, which include SEM analysis, CT detection, stress-strain measurement, wave detection, acoustic emission monitoring, infrared radiation detection, etc. All kinds of damage variables resulted from different methods are equipollent in thermodynamics, and they are an internal variable to characterize damage state. The distinguish of each kind of damage variable is that different formations of state equations and dynamic equations would be derived from different variables. It was suggested that the favorable rock damage variables should be selected according to the thermodynamics principle and those convenient to detect and easy to analysis should be adopted preferably. | |||
TO cite this article:Peng Ruidong,Liu Hongbin,Wang Jianqiang, et al. Developments in detection of rock damage[OL].[14 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4406769 |
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