Table 4
Stress-based Dilatancy boundary models.
| Model | Author(s) | Description |
|---|---|---|
| CDM | Hampel (2012) | In high stress differences of boundary, damage and dilatant changes are modeled as a function of creep strain. This model enables to consider effects of common and reverse transient creep (Hampel, 2012). |
| Gunther and Salzer | Gunther and Salzer, 2007 | This is a strain hardening model in which total deformation rate is a function of effective strain hardening (Gunther and Salzer, 2007). |
| Minkley and Muhlbauer | Minkley and Mühlbauer, 2007 | In this model, stress-strain relationship is modeled by a developed Burgers model in which deformation history is considered through a state variable. Also, this model includes a damage module to consider the damage changes, fracture and post failure (Minkley and Mühlbauer, 2007). |
| KIT | Pudewills, 2007 | This model applies elasto-visco-Plastic context to describe the total deformation rate (Pudewills, 2007). |
| Lubby2-MDCF | Institut fur Unterirdisches Bauen, IUB | In this model, total inelastic deformation rate in non-dilatant creep and dilatant creep are described by shear deformation and tensile deformation respectively (IUB). |
| Hou and Lux | Hou and Lux, 1999 | In this model, inelastic strain rate is considered through adaption of visco-plastic deformation in creep without volume changes, damage and healing resulting from dilatancy and compression respectively (Hou and Lux, 1999). |