Question

The total area under the stress-strain curve of a mild steel. Specimen tested up to failure under tension is a measure of its
Ans-

Answer 1

Answer:

Toughness

Explanation:

• Breaking strength is the maximum stress that a material can withstand while being stretched or pulled before failing or breaking so its not related with strain only stress are considered,
• Hardness is the resistance of a material to localized deformation so hardness is propositional to accepted load before any deformation at here strain = change in length / original length are not consider.
• Toughness is the ability of a material to absorb energy and plastically deform before fracturing and absorb energy per unit volume calculated by area under the stress-strain curve.

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