Here an example of the Dload subroutine in Abaqus is provided. Here, a constant circular shape load is applied on a plane. The plane is fixed from the edges and because of the load you can see it bend from the middle section. In addition, in the PowerPoint file, you can find good information about the subroutine code. If you think you need more background it might be a good idea to see the other video about the subroutine. Using the Dlaod subroutine allows you to apply load with different distribution which can be dependent on the geometry of part and time as well. To use subroutine we need to use FORTRAN code and also Abaqus needs to be linked to Intel FORTRAN. The video is short so you can learn this in less than 15minutes