data analysissfsf
DESCRIPTION
sdfsfsfTRANSCRIPT
Analysis of DataThrough the use of the stress-strain curve we observed the linear region to obtain the Modulus of Shear G:Torsional Shear: Tr/JShear Strain: r/LL = 9 in. = 0.2286 mD = .75 in. = 0.01905 mJ for a Hexagon = 0.133d4(3/2) = 1.5169*10-8 m4 Data from Excel:Torque (N-m)Torsional Shear Stress (N/m2)Shear Strain (m/m)10.57760063.7410.00014537
40.930227295.90.000436111
G = (2 1)/( 2 1) = 30227295.9 - 7760063.741)/( 0.000436111- 0.00014537) = 77.275 GPaUsing the following equation we determined Poissons Ratio:G = E/2(1+ ) => = (E/2G) - 1E = 29ksi = 200G = (200GPa/2(77.275GPa)) 1 = .2941Using the following equation we determined the Theoretical Torque:R = .009525 mT = (GJ)/r @ 0.6 Degrees Rotation: T = (77.275*109*1.5169*10-8*.000436111)/.009525Tth = 53.67 N-mFor 12L14 Steel:
Linear Range only:
Experimental Values:G = 77.275 GPa = [email protected] Degrees Rotation: T = 40.9 N-m
Theoretical and Referenced Values:G = 80GPa = [email protected] Degrees Rotation: T = 53.67 N-m
Calculated Differences:%GDiff = 3.4653% = 1.9862%T = 27.0065