Question

The property of material able to withstand both plastic and elastic deformations is called as

• A. Resilience
• B. Hardness
• C. Toughness
• D. Malleability

Answer 1

Answer:

C. Toughness

Toughness is the property of a material to absorb energy per unit volume before failure, while withstanding both plastic and elastic deformations. The work done by the external load is absorbed by the material in the form of strain energy. The capacity of a material to absorb this energy per unit volume, before failure, is called toughness. This property is useful for machine components subjected to shock and impact loads.