Learning Forum

[peteroznewman]

I'm trying to reproduce Example 10.3 from the book Finite Element Analysis (3rd Edition) by Saeed Moaveni. The book uses ANSYS Classic but I am building the model in SpaceClaim.

Note the hexagon in the center has sides with 9 mm length. The issue is that when I build this geometry in SpaceClaim, and compare it with the result in the book, the size of the polygon in SpaceClaim looks larger than the size shown in the book. I put the two solutions side-by-side and made the 3 cm lengths equal. Look at how much larger the polygons are in the lower figure, which is the SpaceClaim geometry.

The larger polygon obviously allows a larger deformation under the same load.

I would appreciate it if someone with ANSYS Classic skills would create the model geometry and attach it to a reply so I can see if ANSYS Classic gives the same size polygon as SpaceClaim.

Regards,
Peter

[FrankD]

Here you go Peter, model and image.

The SpaceClaim polygon is sized by the inscribed circle, not the outside, so I had to offset the polygon in 3D until the measured sides lengths were what I desired.

F

[peteroznewman]

Frank, that's it!  Inscribed radius is the dimension.  After you said that, I looked more carefully at the Options - Sketch Polygon and it is as simple as unchecking Use internal radius to get the circumscribed radius!

Thanks for the quick response.

Regards,
Peter