A property which resists deformation
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Answer:
Mechanical properties of material are related to the behavior under load or stress in tension, compression or shear.
Properties are determined by engineering tests under appropriate conditions, commonly determined mechanical properties are the tensile strength, elastic limit, creep strength, stress rupture, fatigue, elongation (ductility), impact strength (toughness and brittleness), hardness, and modulus of elasticity(ratio of stress to elastic strain-rigidity). Usually, the strain may be elastic (present only during stressing) or plastic (permanent) deformation.
Mechanical properties are helpful in determining whether or not a material can be produced in the desired shape and also resist the mechanical forces anticipated.
The words mechanical and physical are often erroneously used interchangeably. The above are mechanical properties. Sometimes modulus of elasticity is considered to be a physical property of a material because it is an inherent property that cannot be changed substantially by practical means such as heat treatment or cold working. The mechanical properties of materials are explained as follows