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Question: rigid bar abcd is supported by a pin connection at...

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Rigid bar ABCD is supported by a pin connection at A and by two axial bars (1) and (2). Bar (1) is a 35-in.-long bronze [E - 12800 ksi] bar with a cross-sectional area of 1.23 in.2. Bar (2) is a 43-in-long aluminum alloy [E = 11500 ksi] bar with a cross-sectional area of 1.71 in.2. Assume 4-35 in., L2-43 in., a=35 in., b-54 in., and c=19 in. Both bars are unstressed before the load P is applied. If a concentrated load of P = 22 kips is applied to the rigid bar at D, determine: (a) the normal stresses ơ1. ơ2 in bars (1) and (2) (b) the downward deflection vp of point D on the rigid bar L1 Cl

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