I want to plot the stress-strain chart for a specimen after a test.
In the output file of excel, I have "Strain of transmitted bar" and "Strain of the incident bar"
I also have Young's modulus of the bar which is 209 GPa, other data are:
- Diameter of the bar = 21 mm
- P wave velocity = 5100 m/s
- Length of the striker = 200 mm
I do not know how to get the specimen strain from these data so I can have the whole "strain" and then plot the chart?