A) Toughness
B) Proof Resilience
C) Ductility
D) Malleability
According to IS 800:2007, Clause 2, Proof resilience is defined as the maximum strain energy that a material can absorb per unit volume without any permanent deformation. This is an important design consideration as it indicates the ability of a material/component to absorb shock and impact loads by undergoing elastic deformation. Table 2 of IS 800:2007 provides the resilience values for structural steel.
The correct option is B) Resilience
