Materials Testing

The objective of this lab is to find the relationship between tensile stress and strain for various materials. The Stress-Strain Apparatus stretches (and in some cases breaks) a test coupon while it measures the amount of stretch and force experienced by the test coupon. Software is used to generate a plot of stress versus strain, which allows Young’s Modulus, the elastic region, the plastic region, the yield point, and the break point to be ascertained.

The Stress Strain Apparatus lets students observe stress and strain as they stretch a material to the point of fracture.