FEM: Add thermal contact with CalculiX (#22121)

src/Mod/Fem/App/FemConstraintContact.cpp

@@ -58,6 +58,16 @@ ConstraintContact::ConstraintContact()
                       "ConstraintContact",
                       App::PropertyType(App::Prop_None),
                       "Stick slope");
+    ADD_PROPERTY_TYPE(EnableThermalContact,
+                      (false),
+                      "ConstraintContact",
+                      App::PropertyType(App::Prop_None),
+                      "Enable thermal contact");
+    ADD_PROPERTY_TYPE(ThermalContactConductance,
+                      (std::vector<std::string> {}),
+                      "ConstraintContact",
+                      App::PropertyType(App::Prop_None),
+                      "Thermal contact conductance");
 }
 
 App::DocumentObjectExecReturn* ConstraintContact::execute()

src/Mod/Fem/App/FemConstraintContact.h

@@ -51,6 +51,8 @@ public:
     App::PropertyBool Friction;
     App::PropertyFloat FrictionCoefficient;
     App::PropertyStiffnessDensity StickSlope;
+    App::PropertyBool EnableThermalContact;
+    App::PropertyStringList ThermalContactConductance;
 
     // etc
     /* */