There are two main subcategories of inelastic materials: brittle (material that cracks or fractures easily ... Rubber band: elastic Metal wires: inelastic, ductile Silly putty: inelastic, ductile ...

The fracture surface associated with ductile fracture is shown in the photograph for a low carbon steel tested at high temperature. The top photograph shows the fracture surface at the center region ...

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 ...