# 7.6.15.13.4. Deformable_Rock_Compressible

Syntax

  Porosity [{of} SpeciesName] = Deformable_Rock_Compressible (Cr = cr | [Ref_Porosity = ref_porosity] | [Ref_Pressure = ref_pressure] | [Biot = biot] | [Clip = clip])

Scope

  Aria Material

Summary

  Rock compressibility linearized model of porosity for deforming media

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
cr | real | –
ref_porosity | real | 0
ref_pressure | real | 0
biot | real | 1
clip | real | 1e-06