Point Load
Add a Point Load to points for concentrated forces or moments at points. The loads are defined in the given coordinate system. From the Coordinate system list select from:
Global coordinate system (the standard global coordinate system).
Face Defining the Local Orientations
This setting is used in conjunction with Shell Local System. When the load is applied to an edge which is shared between boundaries, the coordinate system can be ambiguous. Select the boundary which should define the edge system. The default is Use face with lowest number.
Through-Thickness Location
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 that for a tangential load, the distance from the midsurface is used to compute an additional equivalent moment load.
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.
If a selected point is connected to boundaries having different thicknesses, then the result of specifying Top Surface or Bottom Surface is not well-defined.
Force
Enter values or expressions for the components (x, y, z) of the point load FP.
The Load list normally only contains User defined. When combining the Shell interface with another physics interface, it is also possible to choose a predefined load from this list.
Moment
Enter values or expressions for the components (x, y, z) of the point moment MP.
You can add the Phase subnode to specify the phase of this load in a frequency domain analysis.
Location in User Interface
Context Menus
Ribbon
Physics tab with Shell or Plate selected: