The split line concepts for mesh control will be illustrated via the first tutorial
“Static Analysis of a Part”, using the SW Simulation example file Tutor1.sldprt
which is shown in Figure 4-1. (Remember to save it with a new name by
putting your initials at the front.) Consider that tutorial to be a preliminary
analysis. You should recall that there was bending of the base plate near the
loaded vertical post. However, the original solid mesh had only one element
through the thickness in that region and would therefore underestimate the
bending stresses there. You need to control the mesh there to form 4 to 5 layers
to accurately capture the change in bending stress through the thickness.
The original deformed shape, in Figure 4-2, is shown relative to the undeformed
part (in gray). You see bending at the end of the base and deflection of the part
bottom back edge in the direction of the (unseen) supporting object below it.
From the original effective stress plot in Figure 4-3 and Figure 4-4 you can see
that large regions, within the red contours, have exceeded the material yield
stress. Actually, the maximum value is over 133,000 psi, or about 1.5 times the yield stress, on the top and bottom of the base. Clearly, this part must have its
material or dimensions changed and/or new support options must be utilized.