A rectangular steel plate [E = 210 GPa, ν = 0.28, and Y = 26…

A rectаngulаr steel plаte [E = 210 GPa, ν = 0.28, and Y = 260 MPa] has a width оf 0.9 m, a length оf 1.3 m, and a thickness оf 30 mm. All four edges are simply supported. The plate is subjected to a uniform pressure of 100 kPa. Considering the effect of Poisson's ratio, determine the maximum bending moment per unit width in the plate.