The steel bolt has a diameter of 7 mm and fits through an aluminum sleeve as shown. The sleeve has an inner diameter of 8 mm and an outer diameter of 10 mm. The nut at A is adjusted so that it just presses up against the sleeve. If the assembly is originally at a temperature 20C and then is heated to a temperature of 100C, determine the average normal stress in the bolt and the sleeve. Est = 200 GPa, Eal 70 GPa, ast = 14(1076)/C, al = 23(106)/C. of T T2 = = =