GATE 2017

Question

For a ductile material, toughness is a measure of –

a) resistance of scratching

b) ability to absorb energy up to fracture

c) ability to absorb energy till elastic limit

d) resistance to indentation

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Engineering Ishwarya Saro 10 months 2 Answers 140 views 0

Answers ( 2 )

  1. For a ductile material, toughness is a measure of ability to absorb energy up to fracture. (Toughness is the ability of a material to absorb energy and plastically deform without fracturing. )

     

  2. Simply the toughness is the property of material in which it can absorb energy upto fracture. So, option (b) is correct.
    For further explanation we can go through the stess-strain diagram of a ductile material and we will see there that the area covered under curve from elastic limit to fracture point is considered as toughness.

    Happy Learning. 🙂

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