26.6.3 Porous bulk moduli
Products: Abaqus/Standard Abaqus/CAE
References
Overview
The porous bulk moduli:
must be defined whenever the compressibility of the solid grains or the compressibility of the permeating fluid is to be considered in the analysis of a porous medium; and
must be defined when a swelling gel is modeled (“Moisture swelling,” Section 26.6.6).
Defining porous bulk moduli
You can specify the bulk modulus of the solid grains and the bulk modulus of the fluid as functions of temperature. If either modulus is omitted or set to zero, that phase of the material is assumed to be fully incompressible.
| Input File Usage: | *POROUS BULK MODULI |
| Abaqus/CAE Usage: | Property module: material editor: Other |
Elements
The porous bulk moduli can be defined only for elements that allow for pore pressure (see “Choosing the appropriate element for an analysis type,” Section 27.1.3).