Use the three-noded bar element and find the axial displacement at the end of the rod shown in Figure P10–8. Determine the stress at x = 0, x = L=2 and x = L. Let A = 2 104 m2, E = 205 GPa, and L = 4 m. Hint: Use Eq. (10.5.22) for the element sti¤ness matrix.


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