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Parameters for the proposed model.
| parameter | interpretation | range | identification |
|---|---|---|---|
| c (kPa) | stiffness of (isotropic) ground matrix | (0, ∞) | mechanical tests |
| k1 (kPa) | parameter with dimension of stress | [0, ∞) | |
| k2 (–) | dimensionless parameter | [0, ∞) | |
| κip | dispersion in plane | [0, 1] | histology/imaging |
| κop | dispersion out of plane | [0, 1/2] | |
| M4, M6 | mean fibre directions | α ∈ [0, π/2] | |
| Mn | normal to the mean fibre plane | — |
