The compound bar containing steel, bronze, and aluminum segments carries the axial loads shown in the figure. The properties of the segments and the working stresses are listed in the table. Determine the maximum allowable value of
P
if the change in length of the entire bar is limited to 0.08 in. and the working stresses are not to be exceeded.
Extracted text: A (in.²) E (psi) G, (psi) Steel 0.75 30 x 106 20000 Bronze 1.00 12 x 106 18 000 Aluminum 0.50 10 x 10° 12000
Extracted text: Bronze 4 ft Steel Aluminum P 2 ft 3 ft 2P 3P 4P