public static double ElastSectModBot(double bft, double tft, double D, double tw, double bfb, double tfb)
{
Ybf = NCProperties.PartCG(0, 0, tfb);
NA = NCProperties.NeutralAxis(bft, tft, D, tw, bfb, tfb);
I = NCProperties.MomentOfIneria(bft, tft, D, tw, bfb, tfb);
Sbot = I / (NA - Ybf + tfb / 2);
return(Sbot);
}
public static double ElastSectModTop(double bft, double tft, double D, double tw, double bfb, double tfb)
{
Ytf = NCProperties.PartCG(tfb, D, tft);
NA = NCProperties.NeutralAxis(bft, tft, D, tw, bfb, tfb);
I = NCProperties.MomentOfIneria(bft, tft, D, tw, bfb, tfb);
Stop = I / (Ytf - NA + tft / 2);
return(Stop);
}