Research Article

Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading

Table 1

Microparameters of granite specimen [38, 39].

MicroparametersValues

Minimum particle radius (mm)0.3
Ratio of maximum to minimum of radius1.66
Particle density (kg/m3)2800
Particle friction coefficient0.8
Young’s modulus of the particle (GPa)5
Ratio of normal to shear stiffness of the particle3
Young’s modulus of the parallel bond (GPa)43
Ratio of normal to shear stiffness of the parallel bond3
Tensile strength of the parallel bond88
Shear strength of the parallel bond160
Parallel bond radius multiplier1