Input interpretation:

Euler critical buckling load


F_cr = (pi^2 J E)\/L^2 |  \nF_cr | critical load\nL | length of column\nJ | second moment of area\nE | Young\'s modulus\n(for a long slender column with no lateral forces and the ends pinned but free to rotate)

Input values:

length of column | 1 meter\nsecond moment of area | 5×10^-6 m^4  (meters to the fourth)\nYoung\'s modulus | 211 GPa  (gigapascals)

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