Page 142 - Using ANSYS for Finite Element Analysis A Tutorial for Engineers

stAtIc AnAlysIs usIng AreA elements • 129

12. Solving the system:
Solution > Solve > Current LS
Postprocessing: Viewing the Results
Hand Calculations
Now, as the purpose of this exercise was to verify the results, we need to
calculate what we should find.
Deflection: The maximum deflection occurs on the right hand side of
the plate and was calculated to be 0.001 mm—neglecting the effects of the
hole in the plate (i.e., just a flat plate). The actual deflection of the plate is
therefore expected to be greater but in the same range of magnitude.
Stress: The maximum stress occurs at the top and bottom of the hole
in the plate and was found to be 3.9MPa.
Convergence Using ANSYS
At this point, we need to find whether or not the final result has con-
verged. We will do this by looking at the deflection and stress at particular
nodes while changing the size of the meshing element.
As we have an analytical solution for the maximum stress point,
we will check the stress at this point. First, we need to find the node
corresponding to the top of the hole in the plate. First, plot and number
the nodes:
Utility Menu > Plot > Nodes
Utility Menu > PlotCtrls > Numbering...