Classification Of Mechanical Properties

- Jul 01, 2019-

Classification of mechanical properties

Often said mechanical properties are: elasticity, plasticity, stiffness, age sensitivity, strength, hardness, impact toughness, fatigue strength and fracture toughness.

Elasticity: When a metal material is deformed by an external force, it can restore its original shape when the external force is removed.

Plasticity: The ability of a metal material to produce permanent deformation without causing damage under external force.

Stiffness: The ability of a metal material to resist elastic deformation when stressed.

Strength: The ability of a metal material to resist deformation and fracture under external forces.

Hardness: The ability of a metal material to resist the intrusion of a harder object into it.

Impact toughness: The ability of a metal material to resist fracture under impact loads.

Fatigue strength: The maximum stress that does not cause fracture when the metal material is subjected to numerous repetitions or alternating loads.

Fracture toughness: a performance index used to reflect the ability of a material to resist crack instability and expansion.