Transcribed Image Text: An aluminium rod is rigidly attached between a steel rod and a bronze rod as shown in Figure 3. Axial loads are applied at the positions indicated. (a)

Excerpt
(a), determine the total elongation of the rods. Steel Aluminium A = 500 mm? Bronze A = 400 mm? E = 200 GPa A = 200 mm? F = 70 GPa E = 83 GPa 4P 2P 2.5 m 2.0 m 1.5 m Figure 3

Transcribed Image Text: An aluminium rod is rigidly attached between a steel rod and a bronze rod as shown
in Figure 3. Axial loads are applied at the positions indicated.
(a) Find the maximum value of P that will not exceed a stress in steel of 140 MPa,
in aluminium of 90 MPa, or in bronze of 100 MPa.
(b) Using the answer from question (a), determine the total elongation of the rods.
Steel
Aluminium
A = 500 mm?
Bronze
A = 400 mm?
E = 200 GPa
A = 200 mm?
F = 70 GPa
E = 83 GPa
4P
2P
2.5 m
2.0 m
1.5 m
Figure 3

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