Engineering Board Exam Reviewer · Strength of Materials · medium

A steel column (E = 200 GPa) with pinned ends has a length of 4 m and a least moment of inertia of 8 × 106 mm4. What is its Euler critical buckling load?

Answer

B. 986.96

Pcr = π 2EI/L2 = π 2(200,000)(8000000)/(4000)2 = 986960.44 N = 986.96 kN.

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