Geometrical Properties Calculate Settings

Dimensions

a = m, b = m

Area

A = π·a·b m^{2}

Centroid

y_{c} = b m, z_{c} = a m

Perimeter (approx.)

P = π·(3·(a + b) – (3·a + b)·(a + 3·b)) m

Second moments of area

I_{y} = π·a·b^{3}4 m^{4}

I_{z} = π·b·a^{3}4 m^{4}

Polar moment of area

I_{x} = I_{y} + I_{z} m^{4}

Torsional constant

I_{t} = π·a^{3}·b^{3}a^{2} + b^{2} m^{4}

Torsional section modulus

a > b

W_{t} = π·a·b^{2}2 m^{3}

#else

a < b

W_{t} = π·b·a^{2}2 m^{3}

#end if

Radii of gyration

r_{y} = I_{y}A m

r_{z} = I_{z}A m

r_{x} = I_{x}A m