What is meant by ductile?
Ductility is a
measure of the degree of plastic deformation
that is sustained at fracture
lductility is measured using % elongation
l%EL = 100*(lf – lo)/lo
lif %EL >5%, material is considered ductile
llf = fracture length of test specimen
llo = original gauge length of test specimen
If a material does not experience much plastic deformation at fracture, the material is called brittle