ASSIGNMENT

$2324$II$/$BAA$1143$

QUESTION $2[25$ MARKS$]$

$($a$)$ Two $(2)$ hollow brass columns made of circular and square shape have an effective length of $4+5m.$ The cross section for each column is shown in Figure $2($a$).$ The modulus of elasticity is $200$GPa.

i$.$ Determine the wall thickness, $t_0$ of the hollow square if both columns have the same area

ii$.$ Calculate the critical load of each column

$[5$ Marks$]$

$[5$ Marks$]$