A rectangular steel plate [E = 195 GPa, ν = 0.31, and Y = 24…

A rectаngulаr steel plаte [E = 195 GPa, ν = 0.31, and Y = 240 MPa] has a width оf 0.7 m, a length оf 1.3 m, and a thickness оf 20 mm. All four edges are fixed. The plate is subjected to a uniform pressure of 170 kPa. Considering the effect of Poisson's ratio, determine the maximum bending moment per unit width in the plate.