Research Article
Particle Flow Analysis of Macroscopic and Mesoscopic Failure Process of Salt Rock under High Temperature and Triaxial Stress
Table 1
Microstructure parameters of PFC2D constitutive contact model.
| | Contact model | Mesoscopic parameter | Numerical value |
| | Linear | Density (kg/m3) | 2300 | | Linear contact modulus (Pa) | | | Stiffness ratio | 1.0 | | Coefficient of intergranular friction () | 0.6 |
| | Parallel bond | Bond contact modulus (Pa) | | | Normal bond strength (Pa) | | | Shear bond strength (Pa) | |
| | Burger’s | Kelvin elastic coefficient (Pa) | | | Kelvin viscosity coefficient (Pa·s) | | | Maxwell elastic coefficient (Pa) | | | Maxwell viscosity coefficient (Pa·s) | | | Friction coefficient () | 0.6 |
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