A pipe column is braced to prevent bending and buckling. It is subjected to a compressive load of 1000kN. It’s E = 200 GPa. length = 4m and outside diameter is 250mm. Find the required column...

A pipe column is braced to prevent bending and buckling. It is subjected to a
compressive load of 1000kN. It’s E = 200 GPa. length = 4m and outside diameter is
250mm. Find the required column thickness if the allowable shortening of the column
is 0.8mm