Specifies the constitutive setting used by the TRM process.

Currently, two constitutive settings are implemented: The Stress_StrainTemperature one and one named StressSaturation_StrainPressureTemperature. The latter allows for strong THM coupling effects in the solid material behaviour, which computes saturation and total stress from strain, liquid pressure and temperature. It has to be implemented as an MFront material behaviour.

The Stress_StrainTemperature behaviour does not allow for such strong coupling. There the solid material behaviour only computes effective stress from strain and temperature. It can be implemented as a OGS built-in material behaviour or via MFront.

Additional info

From ProcessLib/ThermoRichardsMechanics/CreateThermoRichardsMechanicsProcess.cpp line 239

This is an optional parameter.
This parameter has a default value of "Stress_StrainTemperature".
Data type: std::string
Expanded tag path: processes.process.THERMO_RICHARDS_MECHANICS.subtype
Go to source code: → ogs/ogs/master

Used in the following test data files

[→ ogs/ogs/master | → doc] ThermoRichardsMechanics/LinearMechanics/mechanics_linear.prj
[→ ogs/ogs/master | → doc] ThermoRichardsMechanics/MFront/ThermoPoroElasticity/uniaxial_isothermal_drainage_imbibition_extended_mfront_model.prj