This video is an introduction to stress and strain, which are fundamental concepts that are used to describe how an object responds to externally applied loads. Stress is a measure of the distribution ...

The top diagram shows a tensile stress-strain curve for a 6,6 Nylon. It should be noted that the strain at fracture is very large (300%) compared to that for metals. The lower diagram shows the ...

For most metals, this is true; for polymers, the stress-strain curve is rarely linear, there is no true proportional limit and the behaviour is greatly affected by strain rate and temperature. Because ...