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Stephen Miller

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- Max Deflection Hand Calculations

**Summary:**Max Deflection Hand Calculations

I have to do a project that involves FEA on a thin plate in NX NASTRAN 11, finding the max deflection, and then proving that answer with hand calculations. The max deflection is 1.734 in. I have absolutely no idea how to do the hand calculations. Everything that I've seen is very cryptic or includes infinite series. I just need to be guided in the right direction.

Given values:

thickness = t = 0.125 in

Young's Modulus = E = 10E6 psi

Mass Density ρ = 0.101 lb * m/in^3

Rectangular Plate with dimensions 12 x 8 in

Poisson's Ratio =

*v*= 0.33

And there's a applied pressure of 100 psi.

Attached files are the results from using the FEA, and the tutorial that was provided in case I missed some information.