Meshless method simulation and experimental investigation of crack propagation of CBM hydraulic fracturingGuojun Wen, Haojie Liu, Hongbo Huang, Yudan Wang and Xinyu ShiOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 73 (2018) 72DOI: https://doi.org/10.2516/ogst/2018074