Face Load (Thin Layer)
Add a Face Load node to apply tractions or pressure on boundaries where the Thin Layer material is active.
Coordinate System Selection
The Global coordinate system is selected by default. The Coordinate system list contains all applicable coordinate systems in the model. Prescribed loads are specified along the axes of this coordinate system.
Force
Select the Load typeForce per unit area, Total force, or Pressure. Force per unit length is also available for 2D components. Then enter values or expressions for the boundary load components based on the selection and the space dimension.
For Force per unit area, the traction components are given explicitly.
For Total force, the total force is divided by the area of the boundaries where the load is active. Then it is applied in the same way as for a Force per unit area. When working with curved boundaries or local coordinate systems, use this option carefully, as the result is not always intuitive.
For Pressure, a scalar input is given, and the orientation of the load is given by the normal to the boundary. The pressure is positive when directed toward the thin layer. In a geometrically nonlinear analysis, the current surface normal and area are used.
After selecting a Load type, the Load list normally only contains User defined. When combining with another physics interface that can provide this type of load, it is also possible to choose a predefined load from this list.
Table 4-7: Face load types.
FA
N/m2
FL
Ftot
Linear Buckling
To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box.
If you are performing a linear buckling analysis with a combination of live and dead loads, select the Treat as dead load check box to indicate that the load contributions from this node are constant. The default is that a load is proportional to the load factor.
 
You can add the Phase subnode to specify the phase of this load in a frequency domain analysis.
You can assign this load to a load group. See Load Cases in the Structural Mechanics Modeling chapter.
Modeling Thin Layers in the Structural Mechanics Modeling chapter.
Thin Layers in the Structural Mechanics Theory chapter.
Location in User Interface
Context Menus
Ribbon
Physics tab with Thin Layer node selected in the model tree: