A steel sleeve of 24-mm internal diameter and 36-mm external diameter encloses an aluminum rod of 22-mm diameter. The length of the rod is 0.4 mm longer than that of the sleeve which is 400 mm long as shown in Fig. 1.72. Determine (i) the compressive load upto which only the rod is stressed (ii) the maximum load on the assembly if the permissible stresses in aluminium and steel are 130 MPa and 175 MPa respectively (iii) the deformation of the assembly under maximum load 0.4 mm 400 mm E = 75 GPa E = 205 GPa (28.5 kN; 105.9 kN; 0.293 mm) and Fig. 1.72