Force Extension Graph For Ductile Material. This is related to the. The graphs show how force varies with extension and stress varies with strain for the loading of a metal wire.
The materials that give way and show plastic behaviour prior to fracture such as most metals are called ductile. FkΔL K Spring constant. A very ductile material such as rubber.
The ratio of extension to original length is called strain it has no units as it is a ratio of two lengths measured in metres.
Tensile Test diagram for Ductile and Brittle Materials Measures of Ductility Elongation and Reduction of Area The ductility of a material is a measure of the extent to which a material will deform before fracture. The variation of stress and strain. If a ductile material such as copper is stretched until it breaks and its stress and strain measured and plotted a graph like that in Figure 1 may be obtained. The ratio of extension to original length is called strain it has no units as it is a ratio of two lengths measured in metres.
