protected virtual double GetCriticalStressFcr(double Fe, double Q = 1.0)
{
double Fcr = 0.0;
double Fy = Section.Material.YieldStress;
FlexuralBucklingCriticalStressCalculator fcalc = new FlexuralBucklingCriticalStressCalculator();
return(fcalc.GetCriticalStressFcr(Fe, Fy, Q));
//if (Fe != double.PositiveInfinity)
//{
// double stressRatio = Q * Fy / Fe;
// if (stressRatio > 2.25)
// {
// Fcr = 0.877 * Fe; // (E3-3) if Q<1 then (E7-3)
// }
// else
// {
// Fcr = Q * Math.Pow(0.658, stressRatio) * Fy; //(E3-2) if Q<1 then (E7-2)
// }
//}
//else
//{
// Fcr = Fy;
//}
//return Fcr;
}
protected virtual double GetF_e(double E, double SlendernessKLr)
{
double Fe = 0;
double Slenderness = SlendernessKLr;
FlexuralBucklingCriticalStressCalculator fcalc = new FlexuralBucklingCriticalStressCalculator();
Fe = fcalc.GetF_e(E, Slenderness);
//if (Slenderness != 0)
//{
// //(E3-4)
// Fe = Math.Pow(Math.PI, 2) * E / Math.Pow(Slenderness, 2);
//}
//else
//{
// return double.PositiveInfinity;
//}
return(Fe);
}
