Research Article
Size Effect on the Rheological Shear Mechanical Behaviors of Different Joints: A Numerical Study
Table 2
Mesoscopic parameters of bolt.
| | Category | Mesoscopic parameters | Value |
| | Particle | Density (kg/m3) | 7850 | | Radius (mm) | 0.18-0.3 | | 0.5 | | Porosity | 0.16 | | Normal stiffness kn | 8e9 | | Shear stiffness ks | 2.286e9 | | Flat-joint contact model | Tensile strength pb_ten (GPa) | 4.25 | | Cohesion pb_coh (MPa) | 900 | | Friction angle pb_fa (。) | 0 | | Normal stiffness pb_kn | 5.9e14 | | Shear stiffness pb_ks | 5.9e14 |
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