Why is the deflection for my analytical solution not matching ANSYS results
I'm currently modeling a fixed support circular plate under uniformly distributed load with a 0.381mm thickness. For a pressure of 0.005 psi, the maximum deflection is 0.1143 for my ANSYS results. However, when calculating analytically, the maximum deflection is 0.0625mm using this formula (w = pa^4/64D where D = Et^3/(12(1-v^2)) ). I used the same elastic constants. Can someone please help me.