Add a Face Load to boundaries (for the Plate interface add it to domains), to use it as a pressure or tangential force acting on a surface. The loads are defined in the given coordinate system.

Select a surface — Top Surface, Midsurface, or Bottom Surface. The default is that the load is applied at the midsurface. The effect of using another surface than the midsurface is twofold:

To place the load at another distance from the midsurface, select the Offset check box, and enter a value for the offset, zoffset.

If the material model is Section Stiffness, there may physically not be a well-defined top and bottom surface. If the load is applied at such a surface, the thickness value used to compute the load is taken from the settings in the Thickness and Offset node.

Select a Load type — Force per unit area, Total force, or Pressure.

Enter values or expressions for the components of the moment face load MA.

Physics tab with Shell or Membrane selected:

Physics tab with Plate selected: