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categoryهندسة مدنية
schoolبكالوريوس
event_available2026-07-13
السؤال
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for also attempting the second questions
QUESTION I
A bronze bar is fastened between a steel bar and an aluminum bar as shown below. Axial loads
are applied at the positions indicated. Find the largest value of P that will not exceed an overall
deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze,
and 80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling.
Use End 200 GPa, E70 GPa, and E83 GPa.
Steel
A=480 mm²
Bronze
A = 650 mm²
Aluminum
A = 320 mm²
3P
4P
1.0 m
2.0 m
1.5 m
2P
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