A rigid bar ACE is supported by three vertical wires and is initially horizontal as shown in the figure Then a force P is

Question

A rigid bar ACE is supported by three vertical wires and is initially horizontal as shown in the figure Then a force P is applied at the center of the bar All wires are made from the same material with modulus of elasticity E 200 GPa and have the same cross sectional area A 10 mm You may assume that the deformations are small and that the stresses are within the elastic range for this problem 1 5 m B A 1 0 m D C P 1 0 m F A E 2 0 m Figure 3 1 Rigid bar supported by three vertical wires a Find the normal stresses and the axial displacements in the wires if P 15 kN b Knowing that AB is the critical wire and its yield stress is oy maximum P that can be applied 1500 MPa find the

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