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A metal bar of length L and area of cross-session A is clamped between two rigid support. for the material of the rod, the Youngs modulus is Y and coefficient of linear expansion is \alpha . The temperature is increased by \Delta T The force exerted by the rod on the support is A metal bar of length L and area of cross-session A is clamped between two rigid support. for the material of the rod, the Youngs modulus is Y and coefficient of linear expansion is . The temperature is increased by The force exerted by the rod on the support is

Option: 1

\gamma AL \Delta T

 

 

 


Option: 2

\gamma A\alpha \Delta T


Option: 3

\frac{\gamma L\alpha \Delta t}{A}


Option: 4

\gamma \alpha AL\Delta t


Answers (1)

best_answer

As per we learned

 

Force on the Supports -

F=YA\;\alpha\; \Delta\; \theta

-Thermal stress is Y\alpha \Delta t
Force is stress x Area
F=Y\alpha A\Delta T

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sudhir.kumar

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