A steel tube is surrounding a solid aluminum cylinder, the assembly being compressed between infinitely rigid cover plates by centrally applied force P = 214kN. The aluminum cylinder is 75mm in diameter and the outside diameter of the steel tube is 87.5mm. Es = 200 000 MPa. Ea= 80 000 MPa. 9. Determine the stress in steel a. 63.65 MPa b. 25.45 c. 112.45 d. 101.55 10. Determine the stress in aluminum a. 63.65 MPa b. 25.45 c. 112.45 d. 101.55 Determine the deformation due to loading if it has a length of 900mm. 11. a. 0.286 mm b. 0.259 c. 0.162 d. 0.065