Determine the maximum deflection and maximum principal stress for the plate shown in Fig...

Determine the maximum deflection and maximum principal stress for the plate shown in Figure P12–9. The plate is fixed along all three sides. A uniform pressure of 70 MPa is applied to the surface. The plate is made of steel with E = 200 GPa, v = 0:3, and thickness t = 6 mm, a = 0:75 m and b = 1 m.