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Question

A steel column of rectangular section (15mm×10mm and length 1.5 m is simply supported at both ends. Assuming modulus of elasticity, E= 200 GPa for steel, the critical axial load (in kN) is

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Solution

Buckling load =π2EIminL2
=π2×200×103×15×1031215002
=1096.62N=1.097kN

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