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Thermal properties of carbon and stainless steel based on Eurocode EN1993-1-2

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Thermal properties of carbon and stainless steel (both data and curve)

STP(varargin)
function varargout = STP(varargin)
% STP M-file for STP.fig
%      STP, by itself, creates a new STP or raises the existing
%      singleton*.
%
%      H = STP returns the handle to a new STP or the handle to
%      the existing singleton*.
%
%      STP('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in STP.M with the given input arguments.
%
%      STP('Property','Value',...) creates a new STP or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before STP_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to STP_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help STP

% Last Modified by GUIDE v2.5 05-Apr-2013 15:34:10

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @STP_OpeningFcn, ...
                   'gui_OutputFcn',  @STP_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT

% --- Executes just before STP is made visible.
function STP_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to STP (see VARARGIN)

% Choose default command line output for STP
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% This sets up the initial plot - only do when we are invisible
% so window can get raised using STP.
if strcmp(get(hObject,'Visible'),'off')
     Pa=7850; %kg/m3
        Ta=[20;1200];
        Pa1=[0;7850];
        plot(Ta,Pa1,'--w','LineWidth',2);
        
        
end

% UIWAIT makes STP wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = STP_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
axes(handles.axes1);
cla;

popup_sel_index = get(handles.popupmenu1, 'Value');
switch popup_sel_index
    case 1
        Pa=7850; %kg/m3
        Ta=[20;1200];
        Pa1=[7850;7850];
        plot(Ta,Pa1,'--r','LineWidth',2);
        xlabel('Temperature (\circC)','FontSize',12)
        ylabel('Density (kg/m^3)','FontSize',12)
        legend('Density',4)
        xlim([0,1200])
        ylim([0,15000]);
        % creating matrix in gui
        dat = [Ta,Pa1,Pa1]; 
        cnames = {'Temperature','Carbon steel','Stainless steel'};
        a = uitable('Parent',STP,'Data',dat,'ColumnName',cnames,'Position',[49 85 350 385]);
    case 2
        %Specific Heat
        Ts600=(20:1:600)';[i600 ii600]=size(Ts600);
        for ia=1:1:i600;
        Ca600(ia,1)=425+7.73*10^-1*Ts600(ia,1)-1.69*10^-3*Ts600(ia,1)^2+2.22*10^-6*Ts600(ia,1)^3;
        end
        Ts735=(600:1:735)'; [i735 ii735]=size(Ts735);
        for ia=1:1:i735;
        Ca735(ia,1)=666+(13002/(738-Ts735(ia,1)));
        end
        Ts900=(735:1:900)'; [i900 ii900]=size(Ts900);
        for ia=1:1:i900;
        Ca900(ia,1)=545+(17820/(Ts900(ia,1)-731));
        end
        Ts1200=(900:1:1200)'; [i1200 ii1200]=size(Ts1200);
        for ia=1:1:i1200;
        Ca1200(ia,1)=650;
        end
        Tspecific=[Ts600;Ts735;Ts900;Ts1200];    
        SpHeat=[Ca600;Ca735;Ca900;Ca1200];
        
        %stainless steel
         SSS=Tspecific;
         [SSSa,SSSb]=size(Tspecific);
         for SSSia=1:1:SSSa;
             SpHeatS(SSSia,1)=450+0.280*SSS(SSSia,:)-2.91*(10^-4)*SSS(SSSia,:)^2+1.34*(10^-7)*SSS(SSSia,:)^3;
         end
        
        %
        plot(Tspecific,SpHeat,'--r',Tspecific,SpHeatS,'--b','LineWidth',2);
        xlabel('Temperature (\circC)','FontSize',12)
        ylabel('Specific Heat (J/kg K)','FontSize',12)
        legend('Carbon Steel','Stainless Steel',2)
        xlim([0,1200])
        ylim([0,5000]);
              
        dat = [Tspecific,SpHeat,SpHeatS]; 
        cnames = {'Temperature','Carbon steel','Stainless steel'};
        a = uitable('Parent',STP,'Data',dat,'ColumnName',cnames,'Position',[49 85 350 385]);
       
    case 3
        %Thermal Conductivity of Carbon Steel
         Tk800=(20:1:800)';[i800 ii800]=size(Tk800);
         for ia=1:1:i800;
         La800(ia,1)=54-3.33*10^-2*Tk800(ia,1);
         end
         Tk1200=(800:1:1200)';[i1200 ii1200]=size(Tk1200);
         for ia=1:1:i1200;
         La1200(ia,1)=27.3;
         end
         Tconductivity=[Tk800;Tk1200];    
         Lconductivity=[La800;La1200];
        % stainless
         SSSC=Tconductivity;
         [SSSCa,SSSCb]=size(Tconductivity);
          for SSSCia=1:1:SSSCa;
          TconductivityS(SSSCia,1)=14.6+1.27*(10^-2)*SSSC(SSSCia,:);
          end
         
         plot(Tconductivity,Lconductivity,'--r',Tconductivity,TconductivityS,'--b','LineWidth',2);
         xlabel('Temperature (\circC)','FontSize',12)
         ylabel('Thermal Conductivity (W/m K)','FontSize',12)
         legend('Carbon Steel','Stainless Steel',4)
         xlim([0,1200])
         ylim([0,60]);
       
         dat = [Tconductivity,Lconductivity,TconductivityS]; 
        cnames = {'Temperature','Carbon steel','Stainless steel'};
        a = uitable('Parent',STP,'Data',dat,'ColumnName',cnames,'Position',[49 85 350 385]);
end


% --------------------------------------------------------------------
function FileMenu_Callback(hObject, eventdata, handles)
% hObject    handle to FileMenu (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


% --------------------------------------------------------------------
function OpenMenuItem_Callback(hObject, eventdata, handles)
% hObject    handle to OpenMenuItem (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
file = uigetfile('*.fig');
if ~isequal(file, 0)
    open(file);
end

% --------------------------------------------------------------------
function PrintMenuItem_Callback(hObject, eventdata, handles)
% hObject    handle to PrintMenuItem (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

printpreview(handles.figure1)

% --------------------------------------------------------------------
function CloseMenuItem_Callback(hObject, eventdata, handles)
% hObject    handle to CloseMenuItem (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
selection = questdlg(['Close ' get(handles.figure1,'Name') '?'],...
                     ['Close ' get(handles.figure1,'Name') '...'],...
                     'Yes','No','Yes');
if strcmp(selection,'No')
    return;
end

delete(handles.figure1)


% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns popupmenu1 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu1


% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
     set(hObject,'BackgroundColor','white');
end

set(hObject, 'String', {'Density', 'Specific heat', 'Thermal conductivity'});

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