find the second moment of area for a thin walled z-section beam in matlab

To find the second moment of area for a thin-walled z-section beam in MATLAB, you can follow these steps:

1. Define the geometry of the z-section beam by specifying the dimensions of its different sections (flanges and web).
2. Divide the z-section beam into individual rectangles and compute the second moment of area for each rectangle.
3. Sum up the individual second moments of area to get the total second moment of the z-section beam.

Here's an example code that demonstrates how to calculate the second moment of area for a thin-walled z-section beam:

main.m
% Define the dimensions of the z-section beam
h = 100;  % total height of the beam
b1 = 20;  % width of the upper flange
b2 = 30;  % width of the lower flange
t1 = 5;   % thickness of the upper flange
t2 = 6;   % thickness of the lower flange
t3 = 2;   % thickness of the web

% Calculate the second moment of area for each section of the z-section beam
I1 = (b1 * t1^3) /12;  % second moment of area for the upper flange
I2 = (b2 * t2^3) /12;  % second moment of area for the lower flange
I3 = (t3 * h^3) / 12;  % second moment of area for the web

% Calculate the total second moment of area for the z-section beam
I_total = 2 * (I1 + I2) + I3;

% Display the result
disp("The second moment of area for the z-section beam is: " + I_total);
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Please note that this code assumes that the z-section beam is symmetric and that the thickness of the web is constant. You may need to modify the equations and dimensions based on the specific geometry of your z-section beam.