We investigate three aspects of material behavior in this ninth installment of the Cam-Clay
series, namely, anisotropy, heterogeneity, and viscoplasticity. The main focus of the paper is …

We present a new phase-field formulation for the formation and propagation of a compaction
band in high-porosity rocks. Novel features of the proposed formulation include (a) the …

Closed-form expressions for poroelastic coefficients are derived for anisotropic materials
exhibiting single and double porosity. A novel feature of the formulation is the use of the …

We present a continuum framework for coupled solid deformation–fluid flow in anisotropic
elastoplastic porous media. A thermodynamic formulation of the coupled processes gives …

Self-consistent extension of linear poroelasticity to overlapping scales of porosity within fluid-
saturated anisotropic materials is developed. The coefficient matrix of poromechanical …

Geomaterials containing fissures such as some sedimentary rocks often exhibit a bimodal
pore size distribution, and they are also inherently anisotropic due to the distinct bedding …

Efforts towards producing low-carbon fossil fuels and renewable energy resources have
increased significantly within the last two decades and are expected to grow even more in …

We present a double-yield-surface plasticity theory for transversely isotropic rocks that
distinguishes between plastic deformation through the solid matrix and localized plasticity …

While the production of shale gas is always accompanied by stratum deformation, previous
studies have commonly assumed isotropy to simplify the modeling process despite …

Fluid flow in isotropic porous media with one porosity scale is a well understood process
and a common scenario in numerous simulations published in the literature. However, there …