Table 4 Calibrated micromechanical parameters
Parameter type | Parameter name | Symbol | Value | Units |
|---|---|---|---|---|
Interphase elastic | Shear modulus | \(G^\mathrm{{int}}\) | 14.0 | GPa |
Bulk modulus | \(K^\mathrm{{int}}\) | 20.0 | GPa | |
Interphase plastic | Cohesion | c | 1.8 | MPa |
Coefficient of internal friction | \(\mu \) | 0.68 | – | |
Rate sensitivity exponent | n | 4.0 | – | |
Fluidity | \(\tau \) | 0.3 | MPa\(^{-1}\) | |
Normalization factor | \(\dot{\gamma }_0\) | 500 | min.\(^{-1}\) | |
Dilation ratio | \(\lambda \) | 1.0 | – | |
Mobilization factor | m | 0.60 | – | |
Hardening modulus | H | 1.5 | MPa |