The aluminum post shown in the below figure is reinforced with a brass core. The assembly supports an axial compressive load of P = 9.75 kip and this load is applied to the rigid cap,. Take Eal = 10 x 103 ksi and Ebr = 15 x 103 ksi. a. Draw the Free Body Diagram (F.B.D), considering a section perpendicular to the longitudinal axis. Please clearly show that sectional plane along with the upper portion of the body. b. Shall there be any shear and/or moment as an internal loading on the section, which you already have drawn?  c. Develop the equilibrium equation.

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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.