Question:
A homogeneous, prismatic, linearly elastic steel bar fixed at both the ends has a slenderness ratio (l/r) of 105, where I is the bar length and r is the radius of gyration. The coefficient of thermal expansion of steel is 12 × 10-6 /°C. Consider the effective length of the steel bar as 0.51 and neglect the self-weight of the bar.
The differential increase in temperature (rounded off to the nearest integer) at which the bar buckles is
A homogeneous, prismatic, linearly elastic steel bar fixed at both the ends has a slenderness ratio (l/r) of 105, where I is the bar length and r is the radius of gyration. The coefficient of thermal expansion of steel is 12 × 10-6 /°C. Consider the effective length of the steel bar as 0.51 and neglect the self-weight of the bar.
The differential increase in temperature (rounded off to the nearest integer) at which the bar buckles is
The differential increase in temperature (rounded off to the nearest integer) at which the bar buckles is
Updated On: Jul 18, 2024
- 298 °C
- 85 °C
- 400 °C
- 250 °C
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The Correct Option is A
Solution and Explanation
The correct option is (A) : 298 °C.
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