Research Article
Modelling the Crack Initiation and Propagation of Notched Rock Beam under the Three-Point Bending Load
Figure 18
Crack patterns for the rock beams with the notch of 20% offset ratio for different mechanical parameters: (a) E = 20 GPa; σmax = 9 MPa; Gf = 100 N/m; (b) E = 30 GPa; σmax = 9 MPa; Gf = 100 N/m; (c) E = 40 GPa; σmax = 9 MPa; Gf = 100 N/m; (d) E = 30 GPa; σmax = 6 MPa; Gf = 100 N/m; (e) E = 30 GPa; σmax = 12 MPa; Gf = 100 N/m; (f) E = 30 GPa; σmax = 9 MPa; Gf = 80 N/m; (g) E = 30 GPa; σmax = 9 MPa; Gf = 120 N/m.
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