public
Reference buckling moment as per AS 4100:2020 Section 5.6.1.1
Second moment of area about minor y-axis
$$ I_{y_{AS4100}} = 30800000 \:
mm^4 $$
Warping constant for the section
$$ I_{w_{AS4100}} = 0 \:
mm^4 $$
Reference buckling moment
$$ M_{o_{AS4100}} = {{\sqrt{ \pi ^ 2 \cdot E \cdot {I_{y_{AS4100}} \over l_{e_{AS4100}} ^ 2} \cdot \left({ G \cdot J_{RHS} + \pi ^ 2 \cdot E \cdot {I_{w_{AS4100}} \over l_{e_{AS4100}} ^ 2} }\right) } \over 10 ^ 3}} \:, Nmm $$