5 2-1. A member is constructed from a cylinder of copper (Ec = 117 GPa) which is rigidly bonded to a cylinder of brass (EB = 124 GPa). The member is fixed at both ends A and D, and is loaded with the two forces shown in the figure. Segment ABC has a diameter of 24 mm and segment CD has a diameter of 32 mm. Determine: A) The reactions at A and D B) The stress in each of the segments (AB, BC, and CD) of the member. Give proper units and indicate tension or compression. A 200 mm B 250 mm 15 KN 24 mm Dia. Copper Ec=117 GPa +4 C 230 mm 12 kN D 32 mm Dia. Brass EB = 124 GPa dit should not be just the math used to obtain an ark and