Those characteristics of the materials which describe their behaviour under external loads are known as Mechanical Properties. The most important and useful mechanical properties are:
Strength : It is the resistance offered by a material when subjected to external loading. So Stronger the material the greater the load it can withstand. Depending upon the type of load applied the strength can be tensile, compressive,shear or torsional.
The stress at the elastic limit is known as yield Strength.
And the maximum stress before the fracture is called ultimate strength. While in tension the ultimate strength of the material represents it tenacity.
