A closed cylindrical storage tank contains gas under pressure (p) and has an inner diameter of 24 in. and a wall thickness of 3/4 in. Strain gages attached to the surface of the tank in transverse (hoop) and longitudinal directions indicate strains of 255 times 10-6 and 60 times 10-6, respectively. Knowing that the shear modulus of the tank material is G = 11.2 times l06 psi, determine: The maximum in-plane shear strain and the maximum in plane shear stress; The pressure (p) inside the tank; and The principal stresses and the absolute maximum shear stress in the wall of the tank.