Answer Posted / abhijit

If we see stress/strain diagram for both (ductile and
brittle), the most common region in both is elastic region.

Take ductile material:-
While designing any component we have to consider yield
strength. Not ultimate tensile strength.
It means we are designing for elastic region.

Take Brittle material:-
This is having only elastic region, so we have to design
for this region only.

If we conclude, we have to design a component for an
elastic region, so we can say for both, ductile as well as
brittle.

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