constitutive_models

Soil constitutive models

The constitutive_models package contains modules that describe soil deformation in response to changes in stress and or time.

Modules:

epus	Elasto-Plastic for Unsaturated Soils, adapted from VB code in Phd thesis of Pham (2005).
swcc	Some soil water characteristic curves (SWCC) for unsaturated soil
velocity_hydraulic_gradient	Relationships between velocity and hydraulic gradient
void_ratio_permeability	Relationships between permeability and void-ratio
void_ratio_stress	Relationships between void-ratio and effective stress.