B2 The stiffened-skin section shown below is designed to carry a vertical shear stress of 5000 psi and a compressive shear stress of 2500 psi in separate design scenarios. All panels are assumed to be simply supported on all edges, and capable of carrying shear and direct stress. For the material used, the elastic modulus is 110 7 psi, and the skin thickness is 0.1 in for all panels. B2a Ignoring the interaction between the two stresses, determine whether any of the skin panels buckle under either of the design stresses. B2b For each panel, determine which of the buckling design conditions is critical, and calculate the minimum thickness that will support stresses without buckling up to either of the design stresses. Ignore the interaction between the design stresses

5000 psi 10 2 3 20 4 5 6 2500 psi 10 8 9 dimensions in inches 15 10 15