/// <summary>
/// Calculate the acting forces to Cracking forces ratio.
/// </summary>
/// <param name="inNMM">The acting forces.</param>
/// <param name="crackingStress">Stress limit for cracking/uncracking section.</param>
/// <returns></returns>
public double ForcesToCrackingForces(InternalForcesContainer inNMM, double crackingStress)
{
if (!CalculationUtility.IsZeroM(inNMM.MomentMz))
{
throw new Exception("Deflection calculation is not aviable for biaxial bending.");
}
double crackigForcesToForces = Double.MaxValue;
solver.SolveResistance(inNMM.ForceFx, inNMM.MomentMy, 0);
double strainMin = solver.GetStrainMin(Autodesk.CodeChecking.Concrete.ResultType.Concrete);
if (strainMin < 0.0)
{
double ActingForceToResistance = 1.0;
SetOfForces ResistanceForces = solver.GetInternalForces(Autodesk.CodeChecking.Concrete.ResultType.Section);
if (Math.Abs(inNMM.MomentMy) > Math.Abs(inNMM.ForceFx))
{
ActingForceToResistance = inNMM.MomentMy / ResistanceForces.MomentX;
}
else
{
ActingForceToResistance = inNMM.ForceFx / ResistanceForces.AxialForce;
}
Autodesk.CodeChecking.Concrete.Concrete concrete = solver.GetConcrete();
double noCrackingTensonStress = -strainMin * concrete.ModulusOfElasticity * ActingForceToResistance;
crackigForcesToForces = crackingStress / noCrackingTensonStress;
}
return(crackigForcesToForces);
}
