public static Dictionary<string, object> HssToLongitudinalPlateMaximumPlateThicknessForShear(CustomProfile HssSection,CustomProfile PlateSection,
            double F_y,double F_yp,bool IsTensionHss,double P_uHss,double M_uHss)
        {
            //Default values
            double t_max = 0;


            //Calculation logic:
            CalcLog log = new CalcLog();
            SteelLimitStateValue limitState = null;

            //PLATE

            SteelPlateSection pl = null;

            if (!(PlateSection.Section is ISectionRectangular))
            {
                throw new Exception("Failed to convert section. Section needs to be either a Pipe or a Tube. Please check input.");
            }
            else
            {
                SteelMaterial mat = new SteelMaterial(F_y);
                ISectionRectangular rect = PlateSection.Section as ISectionRectangular;
                double t_pl, b_pl = 0.0;
                SectionRectangular rSect;
                if (rect.B <= rect.H)
                {
                    rSect = new SectionRectangular(rect.B, rect.H);
                }
                else
                {
                    rSect = new SectionRectangular(rect.H, rect.B);
                }
                pl = new SteelPlateSection(rSect, mat);

            }


            //HSS

            if (!(HssSection.Section is ISectionHollow))
            {
                throw new Exception("Failed to convert section. Section needs to be either a Pipe or a Tube. Please check input.");
            }
            else
            {
                SteelMaterial mat = new SteelMaterial(F_y);
                if (HssSection.Section is ISectionPipe)
                {
                    SteelChsSection sec = new SteelChsSection(HssSection.Section as ISectionPipe, mat);
                    ChsLongitudinalPlate longitudinalPlateChs = new ChsLongitudinalPlate(sec, pl, log, IsTensionHss,90.0, P_uHss, M_uHss);

                    //limitState = longitudinalPlateChs.ge
                    //phiR_n = limitState.Value;
                    //IsApplicableLimitState = limitState.IsApplicable;
                    t_max = longitudinalPlateChs.GetHssMaximumPlateThicknessForShearLoad().Value;

                }
                else if (HssSection.Section is ISectionTube)
                {
                    SteelRhsSection sec = new SteelRhsSection(HssSection.Section as ISectionTube, mat);
                    RhsLongitudinalPlate longitudinalPlateRhs = new RhsLongitudinalPlate(sec, pl, log, IsTensionHss,90.0, P_uHss, M_uHss);

                    //limitState = longitudinalPlateRhs.GetHssYieldingOrCrippling();
                    //phiR_n = limitState.Value;
                    //IsApplicableLimitState = limitState.IsApplicable;
                    t_max = longitudinalPlateRhs.GetHssMaximumPlateThicknessForShearLoad().Value;
                }
                else
                {
                    throw new Exception("Unsupported type of hollow section. Please use Tube or Pipe.");
                }
            }

            return new Dictionary<string, object>
            {
                { "t_max", t_max }
 
            };
        }
        public static Dictionary<string, object> HssToLongitudinalPlateWallPlastification(CustomProfile HssSection,CustomProfile PlateSection,
            double F_y,double F_yp, double P_uHss,  double M_uHss,double theta=90.0, bool IsTensionHss=false, bool IsThroughPlate=false)
        {
            //Default values
            double phiR_n = 0;
            bool IsApplicableLimitState = false;


            //Calculation logic:
            CalcLog log = new CalcLog();
            SteelLimitStateValue limitState = null;

            //PLATE

            SteelPlateSection pl = null;

            if (!(PlateSection.Section is ISectionRectangular))
            {
                throw new Exception("Failed to convert section. Section needs to be either a Pipe or a Tube. Please check input.");
            }
            else
            {
                SteelMaterial mat = new SteelMaterial(F_y);
                ISectionRectangular rect = PlateSection.Section as ISectionRectangular;
                double t_pl, b_pl = 0.0;
                WosadSection.SectionRectangular rSect;
                if (rect.B <= rect.H)
                {
                    rSect = new WosadSection.SectionRectangular(rect.B, rect.H);
                }
                else
                {
                    rSect = new WosadSection.SectionRectangular(rect.H, rect.B);
                }
                pl = new SteelPlateSection(rSect, mat);

            }


            //HSS

            if (!(HssSection.Section is ISectionHollow))
            {
                throw new Exception("Failed to convert section. Section needs to be either a Pipe or a Tube. Please check input.");
            }
            else
            {
                SteelMaterial mat = new SteelMaterial(F_y);
                if (HssSection.Section is ISectionPipe)
                {
                    SteelChsSection sec = new SteelChsSection(HssSection.Section as ISectionPipe, mat);
                    ChsLongitudinalPlate longitudinalPlateChs = new ChsLongitudinalPlate(sec, pl, log, IsTensionHss,theta, P_uHss, M_uHss);

                    limitState = longitudinalPlateChs.GetHssWallPlastificationStrengthUnderAxialLoad();
                    if (IsThroughPlate == false)
                    {
                        phiR_n = limitState.Value;
                    }
                    else
                    {
                        phiR_n = 2.0* limitState.Value; //analogous to Rectangular HSS provsions
                    }
                    
                    IsApplicableLimitState = limitState.IsApplicable;
                    

                }
                else if (HssSection.Section is ISectionTube)
                {
                    SteelRhsSection sec = new SteelRhsSection(HssSection.Section as ISectionTube, mat);
                    if (IsThroughPlate == false)
                    {
                        RhsLongitudinalPlate longitudinalPlateRhs = new RhsLongitudinalPlate(sec, pl,  log, IsTensionHss,theta, P_uHss, M_uHss);

                        limitState = longitudinalPlateRhs.GetHssWallPlastificationStrengthUnderAxialLoad();
                        phiR_n = limitState.Value;
                        IsApplicableLimitState = limitState.IsApplicable;  
                    }
                    else
                    {
                        RhsLongitudinalThroughPlate longitudinalPlateRhs = new RhsLongitudinalThroughPlate(sec, pl, log, IsTensionHss,theta, P_uHss, M_uHss);

                        limitState = longitudinalPlateRhs.GetHssWallPlastificationStrengthUnderAxialLoad();
                        phiR_n = limitState.Value;
                        IsApplicableLimitState = limitState.IsApplicable;
                    }
                   
                }
                else
                {
                    throw new Exception("Unsupported type of hollow section. Please use Tube or Pipe.");
                }
            }

            return new Dictionary<string, object>
            {
                { "phiR_n", phiR_n }
,{ "IsApplicableLimitState", IsApplicableLimitState }
 
            };
        }