Question

The minimum axial compressive load, P required to initiate buckling for a pinned slender column with bending stiffness EI and length L is

• A. $P=\frac{{\pi }^{2}EI}{4L^2}$
  
• B. $P=\frac{{\pi }^{2}EI}{L^2}$
  
• C. $P=\frac{3{\pi }^{2}EI}{4L^2}$
  
• D. $P=\frac{4{\pi }^{2}EI}{L^2}$
  

Answer 1

The correct option is B $P=\frac{{\pi }^{2}EI}{L^2}$


For both ends hinged column buckling load
$P=\frac{{\pi }^{2}EI}{L^2}$