Computer · Strength of Materials
A homogeneous, prismatic, linearly elastic steel bar fixed at both ends has a slenderness ratio (l/r) of 105, where l 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 0.5l 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:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1400°C
- 2250°C
- 385°C
- 4298°C✓
Correct answer
298°C
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