protected double GetFcrGeneral()
{
SectionRectangular r = new SectionRectangular(t_w, h_o);
SteelMaterial mat = new SteelMaterial(Material.YieldStress);
CalcLog log = new CalcLog();
AffectedElementInFlexure flexuralElement = new AffectedElementInFlexure(r, mat, log);
return flexuralElement.GetPlateBucklingCriticalStress(c);
#region Obsolete
//double lambda = GetLambda();
//double F_y = Material.YieldStress;
//double Q;
//if (lambda<=0.7)
//{
// Q = 1.0;
//}
//else if (lambda<=1.41)
//{
// Q = (1.34 - 0.468 * lambda);
//}
//else
//{
// Q = ((1.3) / (Math.Pow(lambda, 2)));
//}
//double F_cr = F_y * Q;
//return F_cr;
#endregion
}
public void ConnectedPlateReturnsFlexuralStrength()
{
ICalcLog log = new CalcLog();
SectionRectangular Section = new SectionRectangular(0.5, 8);
ISteelMaterial Material = new SteelMaterial(50);
AffectedElementInFlexure element = new AffectedElementInFlexure(Section, Material, log);
double phiM_n = element.GetFlexuralStrength();
Assert.AreEqual(360.0, phiM_n);
}
public static Dictionary<string, object> ConnectedElementStrengthInFlexure(CustomProfile Shape,
double L_b, double F_y, double F_u, bool HasHolesInTensionFlange = false, double A_fg = 0, double A_fn = 0, bool IsCompactDoublySymmetricForFlexure = true, double C_b = 1,
string Code = "AISC360-10")
{
//Default values
double phiM_n = 0;
//Calculation logic:
ICalcLog log = new CalcLog();
ISection Isec = Shape.Section as ISection;
ISteelMaterial Material = new SteelMaterial(F_y, F_u, SteelConstants.ModulusOfElasticity, SteelConstants.ShearModulus);
AffectedElementInFlexure element = new AffectedElementInFlexure(Isec, F_y, F_u, HasHolesInTensionFlange, A_fg, A_fn, IsCompactDoublySymmetricForFlexure);
phiM_n = element.GetFlexuralStrength();
return new Dictionary<string, object>
{
{ "phiM_n", phiM_n }
};
}
public void ExtendedPlateBucklingFlexuralStrength()
{
double phiR_n;
double h_o = 9.0;
double t_w = 0.5;
SectionRectangular r = new SectionRectangular(t_w, h_o);
SteelMaterial mat = new SteelMaterial(36);
CalcLog log = new CalcLog();
AffectedElementInFlexure flexuralElement = new AffectedElementInFlexure(r, mat, log);
double lambda = flexuralElement.GetLambda(10);
double refValue = 0.408;
double actualTolerance = EvaluateActualTolerance(lambda, refValue);
Assert.LessOrEqual(actualTolerance, tolerance);
}
