Surface loads can be applied to the model after ejection to predict the part's post-molding stresses or warpage.
Unlike pressure loads, which are always perpendicular to a surface, surface loads can be applied in any direction.
Surface loads
Surface loads are expressed as vectors and are applied in either the global coordinate system, or in a local coordinate system which you need to define and activate at a selected node in the model first.
The following image shows an in-plane traction.
