It describes the relationship between stress and strain of a solid material in the linear elastic range. In simple terms, the modulus of elasticity is a characteristic value for how much a material yields when a force is applied. For example, rubber has a much lower value than steel. This means that under the same load and geometry, a component made of rubber yields much more than the component made of steel.
The calculation of the modulus of elasticity
E = σ / ε = const.
E - modulus of elasticity
σ - stats
ε - Elongation