A compound bar consisting of bronze, aluminum, and steel segments is loaded axially as shown in the figure. Determine the maximum allowable value P if the change in length of the bar is limited to 2 mm and the working stresses prescribed in the table are not to be exceeded. Aluminum 3P Bronze Steel 2P P 4P - 1.0 m- - 0.6 m→- ste-0.8 m - A (mm²) E (GPa) . (MPa) Bronze 450 83 120 Aluminum 600 70 80 Steel 300 200 140

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