# UNEQUAL ANGLE SECTION PROPERTIES CALCULATOR

Unequal angle section properties calculator for area, distances from the centroidal axes to the back of the legs, second moment of area and radius of gyration about the centroidal axes calculation. Unit System (Quick selection) MetricInch INPUT PARAMETERS Parameter Value Long leg [d] mm cm m inch ft Short leg [b] Thickness [t] Length [L] Density [p] g/cm^3 kg/m^3 lb/in^3
 RESULTS Parameter Value Cross section area [A] --- mm^2 cm^2 inch^2 ft^2 Mass [M] --- kg lb Second moment of area about x axis [Ix] --- mm^4 cm^4 inch^4 ft^4 Second moment of area about y axis [Iy] --- Radius of gyration [rx] --- mm cm m inch ft Radius of gyration [ry] --- Distance from the centroid to the back of the long leg [xc] --- mm cm m inch ft Distance from the centroid to the back of the short leg [yc] ---

Note: Use dot "." as decimal separator.

### Definitions:

Second Moment of Area: The capacity of a cross-section to resist bending.

Radius of Gyration (Area): The distance from an axis at which the area of a body may be assumed to be concentrated and the second moment area of this configuration equal to the second moment area of the actual body about the same axis.

### Angle Section Formula:

 ANGLE WITH UNEQUAL LEGS Parameter Symbol Equation Cross section area A A = t(b + d - t) Area moment of inertia Ix Ix = 1/3*[bd3 - (b-t) * (d-t)3] - A * (d - yc)2 Area moment of inertia Iy Iy = 1/3*[db3 - (d-t) * (b-t)3] - A * (b - xc)2 Distance from the centroid to the back of the long leg xc xc=(b2+dt-t2)/(2*(b+d-t)) Distance from the centroid to the back of the short leg yc yc=(d2+bt-t2)/(2*(b+d-t)) Mass M M = ALρ Radius of gyration rx rx = (Ix/A)^0.5 Radius of gyration ry ry = (Iy/A)^0.5