Extracted text: The composite shaft, consisting of aluminium, copper, and steel sections, is subjected to the loading shown in Figure Q1. The modulus of elasticity of Aluminium Eal = 69GPA, modulus of elasticity of Copper Ecu = 117 GPa and modulus of elasticity of Steel Eg = 200 GPa. The composite shaft is circular in shape. 50 mm C 15 kN В 30mm 30 10 kN A mm 15 kN 25 kN 10 kN 15 kN w 500mm 500mm 500mm Aluminium Сорer Ecu = 117 GPa Steel Eal = 69 GPa Est = 200 GPa Figure Q1 Calculate the total displacement for the composite structure. (End D with respect to A)