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We observed a small amount of internal stress (manifesting as bending) within our main sample, but have ruled out thermal and ply orientation as reasons for this occurring. 

Measurement (&Calculations)

Google sheet where I kept measurements

Young's Moduli

specimen a 1kN.xlsx (E = 92.743 GPa w/ R^2 = 0.9969)

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Each specimen file (.xlsx) has separate windows for axial, shear and transverse stresses. 

Poisson's Ratio

I need to confer with Dylan and update this soon. One of the .xlsx files has a very sparse version of the calculations we did, but I'll get a more in depth notation by this weekend.