

Multi-scale Analysis on the Characteristics of Coal Intensity Distribution
Abstract
In order to study the discipline of the coal damage, the intensity distribution model of coal microcell is established. The research comes up with the characteristics of coal intensity which is based on the result of uniaxial compression experiment. The research indicates that the disorder distribution of the coal microcell determines the damage threshold’s randomness in the system. The coal’s brittle fracture strength mainly meets the normal distribution, which is able to explain the status of the stress concentration and the stress fluctuation.
Keywords
intensity model; threshold damage; multi-scale analysisText