The pin-connected structure consists of a rigid beam ABCD and two supporting bar

Question

The pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an aluminum alloy [E = 75 GPa] with a cross-sectional area of A1 = 760 mm2. Bar (2) is a bronze alloy [E = 119 GPa] with a cross-sectional area of A2 = 490 mm2. All bars are unstressed before the load P is applied; however, there is a 2.5-mm clearance in the pin connection at A. If a load of P = 59 kN is applied at B, determine:
(a) the normal stresses ?1, ?2, in both bars (1) and (2).
(b) the normal strains ?1, ?2, in bars (1) and (2).
(c) determine the downward deflection eA of point A on the rigid bar.

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[IMG]http://i65.photobucket.com/albums/h201/calikid4life72/536.jpg[/IMG]

Explanation / Answer

Answer: where is figure

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