A = Area
x = Distance from neutral axis to farthest fibre
I = Moment of Inertia
S = Section Modulus
r = Radius of gyration
The strut width has been deliberatelty increased to show the geometry.
The struts are built with the quad-edge passing through the mid-point of the base. The line which bisects the dihedral passes through the apex. Should you require an equilateral triangle section with the quad-edge passing through the centroid, please use the Polygon profile instead.
To account for hubs, you can specify the hub radius in the ‘Strut Options’ where you can also specify the strut ingress distance – i.e., what portion of the strut is clamped, fixed or inserted within the hub.