I need help in creating a stress-load diagram of three different materials

I have an assignment where I have three materials Brass, Aluminum and Mild Steel, I have conducted an expeirment of fatigue failure and I have tabulated results of stress and load, now i just need to code in MATLAB in order to produce stress on y axis and load on x axis, hope you can help me out with this

[DGM]

I'm sure someone has a canonical example of simple 2D plotting, but here's something.

% example x points and y points
hungerpct = 1:100;
bph = (1:100).'.*[2 3] + [0 5] + 5*rand(100,2); % this represents two data series

hp = plot(hungerpct,bph); % plot all series

legend(hp,{'Diddy Kong','Donkey Kong'})
xlabel('Hunger (%)')
ylabel('Banana Consumption Rate (bananas/hour)')

Otherwise, you can share an example of what you've done so far to disambiguate what exactly your data and goals are.

Answer 1

[Pramil]

Use the “readtable” function to load the tabulated data into MATLAB and then use the “plot” function to plot the data.

Here is a code example that works in MATLAB version R2018a :

% Read data from the Excel sheet 
data = readtable('material_data.xlsx'); 
 
% Extract load and stress data for each material 
load_data = data{:, 'Load'};  
stress_brass = data{:, 'Brass'};  
stress_aluminum = data{:, 'Aluminum'};  
stress_steel = data{:, 'Mild Steel'};  

figure;  

% Plot for Brass 
plot(load_data, stress_brass, 'o-', 'DisplayName', 'Brass'); 
hold on; % for plotting all the data in a single plot 

% Plot for Aluminum 
plot(load_data, stress_aluminum, 's-', 'DisplayName', 'Aluminum'); 
 
% Plot for Mild Steel 
plot(load_data, stress_steel, 'd-', 'DisplayName', 'Mild Steel'); 

% Add labels, title, and legend 
xlabel('Load'); 
ylabel('Stress'); 
title('Stress vs. Load for Different Materials'); 
legend('show'); % Show legend to identify each dataset 

% Release the hold on the current figure 
hold off; 

You can find the documentation for the “readtable” and “plot” functions through the following links:

https://www.mathworks.com/help/releases/R2018a/matlab/ref/readtable.html

https://www.mathworks.com/help/releases/R2018a/matlab/ref/plot.html