- #1
Huumah
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Hi
Just got the data from a tensile strength test on a axle we did in school.
Before it broke:
http://i.imgur.com/1ddrZ7j.png
The data :
https://www.dropbox.com/s/xf5m8m8gyco561n/data.txt
column 1: the displacement in mm
column 2: the force in kNI'm supposed to plot a stress strain diagram like this http://i.imgur.com/qdoHBse.pngMy MATLAB code:
I'm supposed to filter the original data a bit but I have tried but i don't get nothing simular to the desired graph. Can anyone help me
Edit : Its aluminum 6082 T6
Just got the data from a tensile strength test on a axle we did in school.
Before it broke:
http://i.imgur.com/1ddrZ7j.png
The data :
https://www.dropbox.com/s/xf5m8m8gyco561n/data.txt
column 1: the displacement in mm
column 2: the force in kNI'm supposed to plot a stress strain diagram like this http://i.imgur.com/qdoHBse.pngMy MATLAB code:
Code:
load data.txt
%diameter 4 mm
d=4;
cross_section_area=pi*d^2/4;
Length=140;
displacement=data(:,1);
force=data(:,2);
for i=1:length(displacement)
stress(i)=force(i)/cross_section_area;
end
stress
for i=1:length(force)
strain(i)=displacement(i)/Length;
end
strain
plot(strain,stress)
I'm supposed to filter the original data a bit but I have tried but i don't get nothing simular to the desired graph. Can anyone help me
Edit : Its aluminum 6082 T6
Last edited: