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A steel bar ABCD is subjected to point loads of P1, P2, P3 and P4 as shown in Fig. 3.15.Determine the magnitude of the force P3 necessary for the equilibrium, if P1 = 120 kN, P2 = 220 and P4 = 160 kN. Also determine the net change in the length of the steel bar. Take E = 200 GPa. [Ans. 260 kN ; 0.55 mm] [Hint. AB will be subjected to 120 kN (tension). BC will be subjected to 100 kN (compression) and CD will be subjected to 160 kN (tension).

Question-AnswerCategory: Strength of MaterialsA steel bar ABCD is subjected to point loads of P1, P2, P3 and P4 as shown in Fig. 3.15.Determine the magnitude of the force P3 necessary for the equilibrium, if P1 = 120 kN, P2 = 220 and P4 = 160 kN. Also determine the net change in the length of the steel bar. Take E = 200 GPa. [Ans. 260 kN ; 0.55 mm] [Hint. AB will be subjected to 120 kN (tension). BC will be subjected to 100 kN (compression) and CD will be subjected to 160 kN (tension).
Mwate Chito asked 4 months ago

A steel bar ABCD is subjected to point loads of P1, P2, P3 and P4 as shown in Fig. 3.15.Determine the magnitude of the force P3 necessary for the equilibrium, if P1 = 120 kN, P2 = 220 and P4 = 160 kN. Also determine the net change in the length of the steel bar. Take E = 200 GPa. [Ans. 260 kN ; 0.55 mm] [Hint. AB will be subjected to 120 kN (tension). BC will be subjected to 100 kN (compression) and CD will be subjected to 160 kN (tension).

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