Use a computer program to solve the truss design problems shown in Figure P3–63. Determine the single most critical cross-sectional area based on maximum allowable yield strength or buckling strength (based on either Euler’s or Johnson’s formula as relevant) using a factor of safety (FS) listed next to each truss. Recommend a common structural shape and size for each truss. List the largest three nodal displacements and their locations. Also include a plot of the deflected shape of the truss and a principal stress plot.
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