1. Microstructure, Characterization and Mechanical Properties of Coal and Coal-Like Materials.
- Author
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Liu, Xuesheng, Li, Xuebin, Liu, Xuesheng, Tan, Yunliang, and Wu, Yunhao
- Subjects
Physics ,Research & information: general ,F-T action ,Poisson's ratio ,Young's modulus ,acoustic emission ,additives ,ambient pressure effect ,anchored bedding rock material ,back-filling concrete ,co-carbonization ,co-pyrolysis ,coal and gangue ,coal and gas outburst ,coal tar pitch ,complete stress-strain process ,complex stress environment ,compression test ,computed tomography ,contact area ,cyclical loading ,damage evolution ,deep mining ,defects angles ,different parts ,digital analysis ,dynamic mechanics ,energy dissipation ,energy dissipation ratio ,energy evolution ,equivalent stiffness ,failure modes ,gas-containing coal ,gob-side entry retaining ,ground pressure behavior ,impact contact ,impact loading ,influencing factors ,instability mechanism ,interaction ,inversion method ,mechanical aperture ,microcrack evolution ,microstructure ,mining roadway ,multi-level support ,multi-scale characterization ,n/a ,numerical analysis ,numerical simulation ,parameters field ,particle flow code ,permeability ,pressure film ,response differences ,rigid-flexible coupling ,roadway-concentrated areas ,rock ,rock discontinuity ,rock fractures ,rock mechanics ,rupture precursor ,shear failure ,solid-gas coupling ,super-thick nappe ,surrounding rock - Abstract
Summary: In view of the general trend that the development of the global energy industry is oriented toward green, low-carbon, and efficient utilization, scientific research teams in various fields dominated by the coal industry have conducted much research on coal and coal-like materials by borrowing the technologies and concepts of modern materials science and rock mass mechanics, hoping to explore new directions for the high value-added utilization of structural coal resources and the development of new coal-like materials. On behalf of Materials, we invited you to contribute an original research article to a Special Issue on the microstructure, characterization, and mechanical properties of coal and coal-like materials. This Special Issue aimed to showcase the latest scientific and technological achievements and cutting-edge test technologies in the study of coal and coal-like materials, with exploration of their structural change characteristics and mechanical properties under various influencing factors. Hot topics to be covered include: Analysis of mechanical properties of coal and coal-like materials;Multiscale characterization of coal and coal-like materials;Development and utilization of coal resources with high added value;Void structure and seepage characteristics of coal and coal-like materials;Establishment of constitutive relationships.