engineering recuitment AAI JE Technical Mock Test 2020-21 Strength of Materials Columns Euler's Theory of Buckling
The minimum axial compressive load, P, required to initiate buckling for a pinned-pinned slender column with bending stiffness EI and length L is
1
\(P = \frac{{{\pi ^2}EI}}{{4{L^2}}}\)
2
\(P = \frac{{{\pi ^2}EI}}{{{L^2}}}\)
3
\(P = \frac{{{3{\pi ^2}EI}}}{{4{L^2}}}\)
4
\(P = \frac{{{4{\pi ^2}EI}}}{{L^2}}\)