Attached are the 0.063" thick Sbeam simulations with two 1/4" square x 12"
mild steel reinforcements.

         Use your own judgment on interpreting these results. :^)

Bill Dube'


Thanks Again Bill.
Is there something wrong with the stress chart? The tags say 55,000 psi
and green says 32,000 to 49,000. The lower deformation near the
center is consistent with less stress. I am happy with the 1/4 inch
key stock 12 inches long. We are going with it as I speak.
The keys  got rid of the high stress around the cutout.
That is all now down in the light blue or below.

Also of course the aluminum end plates are not incorporated
but that is OK. No need to do it over.

Paul Lamar

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