Two wires are connected to a rigid bar, as shown. The wire on the left is made o

ID: 1828128 • Letter: T

Question

Two wires are connected to a rigid bar, as shown. The wire on the left is

made of A36 steel, having a cross-sectional area of 0.10 in2 and E = 30

x0 106 psi. The 6061-T6 aluminum-alloy wire on the right has a cross-

sectional area of 0.20 in2 and E = 10 x 106 psi. a) If a weight W = 2000

lb is applied as shown, how much vertical deflection will its centerline

experience due to the stretch in the wires. b) Where should the centerline

of the weight be located along the bar such that the bar would remain

horizontal?

p1 30 = 2000 * 20 ==> p1 = 1333.33 N

p2 * 30 = 2000 * 10 ==> p2= 666.66

teta =PL / AE

teta1 = .026 in

teta2 = .033 in

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