Research Article

Numerical Study of Rock Fragmentation Process and Acoustic Emission by FDEM Based on Heterogeneous Model

Table 2

Calibrated values of FDEM model parameters (coe = 1.8).

Parameters unitmh (mm)E (GPa)ν (GPa) (MPa)c (MPa)(N/mm)(N/mm) (GPa•m) (GPa•m)

Sandstone2.00.813.60.29367.24.2533.551.559028013613.6

Note: h is the average edge size of triangular elements.