Determining Tensile Strength of Rock by the Direct Tensile, Brazilian Splitting, and Three-Point Bending Methods: A Comparative Study

Figure 14

Rock failure development process in three-point bending. (a) 84, 17.96 MPa. (b) 192, 17.0 MPa. (c) 286, 12.3 MPa. (d) 372, 8.47 MPa. (e) 576, 7.286 MPa. (f) 899, 5.9 MPa.

(a)

(b)

(c)

(d)

(e)

(f)