Types of Elastic Modulii
There are two types of elastic modulus based on the nature of the stresses:
1)Modulus of Elasticity ( compressive or tensile stress )
2)Modulus of Rigidity ( Shear stress )
Modulus of Elasticity
” Modulus of Elasticity is also called as “Young’s Modulus”. The ratio of tensile stress or compressive stress to corresponding stain is a constant. This ratio is known as Young’s Modulus or Modulus of Elasticity and is denoted as ‘E’ “
Young’s modulus is given by :
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| Formula for Young’s Modulus. |
Modulus of Rigidity:
” Modulus of Rigidity is also known as ‘ Shear Modulus’. The ratio of Shear stress to the corresponding Shear strain within the elastic limit, is known as Modulus of Rigidity “
Shear Modulus is given by:
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| Formula of Shear Modulus |
