Analyses

Make plots of the stress/strain curves, and use the data to obtain the Young's modulus, the offset yield stress, ultimate tensile strength, fracture stress and strain, the total work done on the sample to failure (its toughness), the sample ductility, and any other quantities you feel to be of value. Some of these quantities may be dependent on the strain rate, and you should record the value you select and state it when the data is presented.

How does sample behavior differ in the constant strain-rate and load ramp tests? Which better approximates an engineering use condition?

Measure the sample dimensions both before and after the deformation process, and estimate the volume change produced by the deformation.

How does the deformation to fracture change the Rockwell Hardness of the sample? Is this effect uniform over the sample area? Why?