The Thermal Stress, Solid (
) interface combines a Solid Mechanics interface with a Heat Transfer in Solids interface. The coupling occurs on the domain level, where the temperature from the Heat Transfer interface acts as a thermal load for the Solid Mechanics interface, causing thermal expansion.
When a predefined Thermal Stress, Solid interface is added from the
Structural Mechanics branch (
) of the
Model Wizard or
Add Physics windows,
Solid Mechanics and
Heat Transfer in Solids interfaces are added to the Model Builder.
In addition, the Multiphysics node is added, which automatically includes the multiphysics coupling feature
Thermal Expansion.
When physics interfaces are added using the predefined couplings (for example, Thermal Stress, Solid), specific settings are included with the physics interfaces and the coupling features.
For example, if single Solid Mechanics and Heat Transfer in Solids interfaces are added, an empty Multiphysics node appears in the model tree. You can choose from the available coupling features, but the settings in the constituent interfaces are not modified.
The Thermal Expansion is used to couple the interfaces.