Numerical simulation study on the evolution law of mechanical properties of different metamorphic coals after heat treatment
Xun Zhang,
Hongyu Lai,
Ge Huang
et al.
Abstract:In order to study the effect of temperature on the structure and mechanical properties of coal with different metamorphic degree. Three coal samples with varying degrees of metamorphism were chosen for analysis. The discrete element software PFC2D is used to simulate the heat treatment and compression of coal. The findings indicate that during the heating process, low-order coal exhibits noticeable thermal cracks at an early stage, while thermal crack development in middle-order coal is concentrated in the lat… Show more
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