Civil Engineering MCQJE Level Civil Engineering
Euler''s critical buckling load for a column with both ends pinned (effective length L) is:
Strength of MaterialsStrength of MaterialsMEDIUM
Choose the correct answer
A
π²EI/(4L²)
B
π²EI/L²
C
2π²EI/L²
D
EI/L²
Correct Answer
B. π²EI/L²
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Euler load Pe = π²EI/L². Valid for long slender columns (slenderness ratio > 80 for steel). It marks the load at which a perfectly straight column buckles elastically. The effective length depends on end conditions: pin-pin L, fixed-fixed L/2, fixed-free 2L, fixed-pin 0.7L.
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