the plot command to plot h on the -axis and v on the -axis A tensile testing mac
ID: 3771435 • Letter: T
Question
the plot command to plot h on the -axis and v on the -axis A tensile testing machine such as the one shown in Figure P5.11a and b is used to determie he behavior of materials as they are deformed. In the typical test, a specimen is stretched at a steady rate. The force (load) required to deform the material is measured, as is the resulting deformation. An example set of data measured in one such test is shown in Table P5.11. These 1 Load cell meter Moving crosshead Table P5.11 Tensile Testing Data Load, lbf Length, inches 2000 4000 6000 7500 8000 8500 9000 9500 10000 2.0000 2.0024 2.0047 2.0070 2.0094 2.0128 2.0183 2.0308 20500 2.075Explanation / Answer
Matlab code:
load=[0 2000 4000 6000 7500 8000 8500 9000 9500 10000];
dia=0.505;
area=(pi*dia*dia)/4;
areai=1/area;
stress=load*areai;
length=[2.0000 2.0024 2.0047 2.0070 2.0094 2.0128 2.0183 2.0308 2.0500 2.075];
strain=zeros(1,10);
for i=1:10
strain(i)=(length(i)-2.0000)/2.0000;
end
figure;
plot(strain,stress,'k-o');
title('Stress Vs Strain Graph');
xlabel('Strain') % x-axis label
ylabel('Stress(lbf/in2)') % y-axis label
str = 'Yield point';
text(0.02,45000,str,'HorizontalAlignment','center');
You can change the yield point by changing value in the text(). Edit the values according to values of yield point.
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