In this problem, you are asked to perform a linear static analysis of the 90"x40"x40" flat walled tank shown (Not to Scale). The tank is filled to the height of 80". However, your model will be a quarter of the actual tank due to symmetry. The procedure is exactly the same as that of the Flat Walled Tank exercise completed in 2.2 Guided Practice: Nonlinear Static Analysis except for the part. Make sure that diagrams of Von Mises stress and displacement are included in your analysis report. Analytically determine the pressure at the bottom of the tank