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Question
A member formed by connecting a steel bar to an aluminium bar is shown in figure below
Assuming that the bars are prevented from buckling sidewise, calculate the magnitude of force P, that will cause the total length of the member to decrease by 0.25 mm. The values of elastic modulus for steel and aluminium are 210 GPa and 70 GPa respectively.
A.
224.4 kN
B.
112.2 kN
C.
448.8 kN
D.
None of the above
Answer ( Option A)

224.4 kN

Solution

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