Multiple choice

The ratio of the theoretical critical buckling load for a column with fixed ends to that of another column with the same dimensions and material, but with pinned ends, is equal to

  1. 0.5

  2. 1.0

  3. 2.0

  4. 4.0
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The critical buckling load P = (pi^2 * E * I) / (L_e^2). For fixed ends, L_e = 0.5L. For pinned ends, L_e = L. The ratio of P_fixed to P_pinned = (L / 0.5L)^2 = 2^2 = 4.

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