Hi James,

The original bdf has a PSHELL property with a 3mm thickness, with no offset. In HyperSizer I have set the Reference plane to Top, such that the nodes represent the OML. The optimised thickness is 24mm.

I can calculate the forces and moments on the element from the f06 file and match the numbers in the FBD tab, such that:

Nx, Ny, Nxy = 111.8, 431.0, 378.4 N/mm

Mx, My, Mxy = 9.9, 14.9, 5.6 Nmm/mm

Applying the 12mm offset I can calculate the Object Loads, which have the same in plane loads, with updated moments, such that:

Mx, My, Mxy = 9.9-111.8*12, 14.9-431.0*12, 5.6-378.4*12 Nmm/mm

= -1331.7, -5157.1, -4535.2 Nmm/mm

However, I'm not sure how the Design-to-Loads have been calculated, as these are not the same as the FBD tab, and their calculation is not mentioned in the pdf that you reference.

FYI, in the Design-to-Loads tab, the following moments are shown:

Mx, My, Mxy = 1042.0, 4012.3, 3521.3 Nmm/mm

Regards,

Ruben