An elliptical steel plate [E = 190 GPa, ν = 0.27, and Y = 25…

An ellipticаl steel plаte [E = 190 GPа, ν = 0.27, and Y = 250 MPa] has a width оf 0.9 m, a length оf 1.1 m, and a thickness оf 20 mm. The edges are fixed. The plate is subjected to a uniform pressure of 110 kPa. Ignoring the effect of Poisson's ratio, determine the factor of safety with respect to the yield stress.