Stress Strain and Young’s Modulus

  • Stress–  Force applied on a body per Unit area is called as stress.stresscivilIt can be denoted by Stress= Force/Area.
  • Strain– When a body is subjected to tensile force, the body undergoes change in length.

Change in length of the body to the original length is known as Strain.

Strain = Change in Length / Original Length


  • Modulus of Elasticity / Young’s Modulus

Modulus of elasticity is the ratio of stress to the strain induced in a body

Young’s modulus is denoted by E

E= Stress / Strain


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