Hi,

I am analyzing a Vertical Solid Plate under water;

The height of the plate is 14 ft, Length 56 ft

The Maximum water head is 80 ft.

I can calculate the pressure, stress and deflection mathematically, however since the force distribution is trapezoidal, I was wonder if any could help me on how to apply this force in SolidWorks simulation, so that I can analyze it.

Look at 'Loads and Restraints' in the Simulation help file. There is a non-uniform pressure load option.

You'll have a linear equation where the pressure is atmospheric at the surface of the water and increases linearly with distance below the surface, giving your the trapezoidal profile:

P = P

_{a }+ ρghSwitching to x-y nomenclature, assuming y represents depth into the water and x is along the surface of the water:

P

_{(x,y)}= P_{a }+ ρgyAs we know, pressure depends only on the depth.

Simplify the constants:

P =

_{ }A + BySo, in the non-uniform pressure distribution dialog, you set all the terms involving x to zero. You put P

_{a }for the constant coefficient A, and ρg for the y coefficient B. Or zero for Pa if you don't care about atmospheric.Jim S.