FE code for computing steel section properties

 Hi All, I need to write a FE code for my mid term project to get the cross section proeprties of a steel section (it could be I shaped, C / channel shaped, paired channel sections, paired I sections).I know the tough part here is the computation of warping function.Could anyone help me with some references / spproach on this-I'll be extremely grateful. The proeprties include: 1 Geeometric proeprties

Area of the cross-section (Ag)

Center of gravity of the section (Xcg,Ycg)

Second moment of inertias about CG (Ixx,Iyy)

Radii of gyration (rx,ry)

Elastic Moduli of the section (Zxx,Zyy)

1. Plastic properties:

Plastic neutral axis depths (Cpx,Cpy)

Plastic modulus of the section (Sxx,Syy)

3.      Stability properties:

Buckling parameter (u)

Torsional constant (x)

Torsional stiffness (J)

Warping constant (H)

Kajal