Forward models

Forward(friction_model, state_evolution, ...)

The Forward class assembles the various components that comprise a forward model, such that Forward.__call__ takes some variables and returns the rate of change of these variables

Friction laws

rsf(variables, params, constants)	The classical rate-and-state friction law
cns(variables, params, constants)	The Chen-Niemeijer-Spiers (CNS) friction law

State evolution models

ageing_law(v, variables, params, constants)	The conventional ageing law state evolution formulation
aging_law(*args, **kwargs)	Alias for the ageing_law function
cns_porosity(v, variables, params, constants)	The porosity (state) evolution for the Chen-Niemeijer-Spiers model
slip_rate(v, variables, params, constants)	Evolve slip from slip rate

Stress-transfer models

springblock(t, v, v_partials, variables, ...)	A conventional (non-inertial) spring-block loading formulation
inertial_springblock(t, v, v_partials, ...)	An inertial spring-block loading formulation