Hello,
How do I calculate the stresses at the top surface of the shell?
Do I use an offset to the top surface (as shown in the attached) which will generate the mesh at the top surface of the part (rather then mid surface of the part which is default) and then use the results on the top surface?
rmb on your stress plot and choose to plot the stress on the top shell vs the bottom or vice versa. results are shown on the mid surface or whatever surface you select for your shell but the results come from the top or bottom respectively.