The basic idea of a tensile test is to place a sample of a material between ... with the strain axis. Our example shows a strain of 0.15. The 15% change in length is the amount of “ductility”. When ...

Because of their very large molecular weight (~ 10 6) polymers behave differently from the low molecular weight metals during plastic deformation leading to a ductile fracture. The top diagram shows a ...

The tensile behavior of composites is also different from that of metals in the 'plastic deformation' region of the stress/strain curve. The diagram shows the curve for a uniaxial sample tested along ...