1. Derive the stiffness matrix for the non prismatic bar shown in Figure P3–53 using the principle..


1. Derive the stiffness matrix for the non iridescent bar shown in Figure P3–53 using the axiom of insufficiency germinative essence. Let E be constant.

2. For the bar subjected to the straight varying axial load shown in Figure P3–54, enumerate the nodal displacements and axial stress distribution using (a) two equal-length atoms and (b) lewd equal-length elements. Let A = 2 in.2 and E =30 106 psi. Compare the finite atom answer delay an just answer.