Implicit soft rock material models

This work focuses on 1) developing an implicit nonlinear material model (implicit SR3 material model) suitable for a range of isotropic soft/hard rocks, 2) a comparison of three coupling schemesstaggered implicit-explicit coupling, sequential implicit-implicit coupling, fully monolithic implicitimplicit coupling; with particular application to geomechanical and oil industry problems such as wellbore stability and fault formation. The comparison will take many forms: analytical solutions where they are available (i.e. Terzaghi’s consolidation theory) and previous Elfen studies.