Engineers use Creep machines to determine the stability and behaviour of a material when put through ordinary stresses.
Creep is the tendency of a material to change form over time after facing high temperature and stress.
They most commonly test the creep of alloys and plastics for the understanding of their properties and advantages of one material's use over another.
The machine is used by students and companies to create a creep curve on how much pressure and stress a material can handle.
This is important to note because going straight to the tertiary state causes the material to break faster from its form.