Load vs Deflection graph

[bedermaus]

How to get force reaction on area like in Mechanical, where you can choose as Boundary condition Displacement, etc.?
I tried to get rection forces of nodes associated with the selected area.

mapdl.run('/post26')
    mapdl.run('ASEL,S,AREA,,{}'.format(area_number_static)) # Select area with displacement 0
    mapdl.run('NSLA,S,1') # Select all nodes in area
    nodes_num = mapdl.mesh.nnum # get nodes numbers associated to selected area

Then im getting force like:

for node_num in nodes_num:
        mapdl.rforce(2,node_num,'F','Y','FY1') # geting force reaction of node
        n_force = mapdl.prvar(2) #Lists variables vs. time (10 substeps of 1s.) 

After i getting sum of all nodes, but getting not same result as in Mechanical.

Mechanical

PyMAPDL

[bedermaus]

Any idea?

[pmaroneh]

Hi @bedermaus, I think that the question here is more of getting matching results between Mechanical and MAPDL. I assume that if you open the model in Ansys Classic and use the MAPDL command corresponding to the PyMAPDL ones that you have used, you get the same results between MAPDL and PyMAPDL, correct? If so then it would more be a matter of finding how Mechanical gets the results. Usually the corresponding command is FSUM, but this will be better answered by the standard Ansys technical support.

[germa89]

As @pmaroneh suggested, this type of question is more related to Ansys Customer support. I would suggest you to open a ticket with them in Ansys Customer Portal or Ansys Forum