On 04/11/2016 6:50 PM, dpb wrote:
....

For a constrained beam at both ends, max deflection at midpoint is

ymax=Wl^3/192EI
....

BTW, just for comparison, if the ends were free instead of constrained
from rotation as was postulated, the maximum deflection is

ymax=Wl^3/48EI

Same form, just the constant turns out different. The deflection would
be 4X that of the constrained case (192/48--4).

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