Critical Stress for Elastic Buckling of Column Should be

Critical stress for elastic buckling of column should be π²E/λ².

Solution

A column can fail due to either buckling or crushing but in the case of a long column (λ≥12) failure governs due to buckling of column.

Buckling load for the column can be defined as:

P_cr=π²EI/(l_eff)²

Hence, critical stress =π²E/λ²

Where, E= modulus of elasticity of column material

λ = Slenderness ratio of column, =l_eff/k²

k = radius of gyration and l_eff = Effective length of column

☛ Related Questions:

• If pH value of water is
• The surface runoff is the quantity of water
• The minimum width of a septic tank is taken