Time dependent continuous damage model for deformation and failure of brittle rock

Stationary damage modelling of poroelastic contact

“…It is, however, recognized that natural salt is a highly creepsusceptible material and the elastic damage is only a minor component of the overall mechanical response. Similar time-dependent effects can also occur in brittle materials due to sub-critical propagation of microcracks due to phenomena known as stress corrosion (Shao et al, 1997). It should also be remarked that not all stress states contribute to such increases in the permeability of geomaterials.…”

Modeling Creep Fracture in Rock by Using Kelvin Discretized Virtual Internal Bond

“…How to model the creep fracture has been an important and tough problem. So far, many theoretical creep models have been proposed, for example, the phenomenological models [1][2][3] and the micromechanicsbased models [4][5][6][7][8][9][10][11][12]. In these models, the constitutive relation is derived from some time-dependent mechanisms.…”