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**Column critical buckling stress calculator** - formula & step by step calculation to find the maximum allowable stress of the vertical column. σ = (π^{2} x E)/[(l/r)^{2}]. Young's modulus (elasticity) of the column material E in Pa, unsupported length of column l in m & least radius of the column r in m are the key terms of this calculation. F/A is the allowable stress of the column & (l/r) is the slenderness ratio.

The below mathematical formula is used to calculate the allowable buckling stress of the column in mechanical engineering. Besides, the step by step calculation for each calculation performed by using this calculator let the users to know how to perform critical buckling stress calculation.

In the field of *mechanical engineering*, sometimes, it's important to analyse column buckling stress. The above formula & step by step calculation may be useful for users to understand how the values are being used in the formula to find the critical buckling stress of a column, however, when it comes to online for quick calculations, this calculator helps the user to perform & verify such mechanical engineering calculations as quick as possible.