nThere are several online calculators such as this one:n would type in your inputs to check your calculation, but you didn't provide all the inputs.nI can't tell if you have meshed a surface with shell elements, which is the right way to do this model.nOr if you have meshed a solid body with solid elements, which is the wrong way to do this model.nANSYS is not using the formula, it is using the Finite Element Method to obtain a numerical result for the given boundary conditions.nThe advantage of the FEM is a result can be obtained for any shape, whereas the equation is only valid for a circular plate with a clamped edge.n