Modulus of elasticity, Mechanical Engineering

Explain Young's Modulus or Modulus of elasticity?

Sol. : It is ratio between tensile stress and tensile strain or compressive stress and compressive strain. It can be denoted by E. It is same as modulus of elasticity

E  =  σ/e [ σt/et  or σc/ec]



Young's Modulus(E)


Mild steel

2.1 × 105  N/mm2


Cast Iron

1.3 × 105  N/mm2



0.7 × 105  N/mm2



1.0 × 105  N/mm2



0.1 × 105  N/mm2

The percent error in calculation of Young's modulus is: [(E1  - E2)/E1] × 100


Posted Date: 10/20/2012 7:41:41 AM | Location : United States

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