Question: HW3.12. Total deformation - three connected vertical rods A load P = 83 kips is applied to the top of the composite support column

HW3.12. Total deformation - three connected vertical rods A load P = 83 kips is applied to the top of the composite support column while a load 2P is applied to the junction between the bottom and middle columns, as shown in the the figure below. All collumns are made of the same material with elastic modulus 27.103 ksi. = Find the MAGNITUDE of the displacement of point D at the top of the column. Use: L1 = L2 = L = 16 in, L3 = L/3 A3 = A = 98 in, A = 3A, A = 3A/2 P. (3) D L3 (2) B (1) 2P A L2 L .10-3 in

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