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Youngs Modulus

The modulus of elasticity for a variety of common materials

Description

The modulus of elasticity defines the relationship between uniformly distributed normal stress $\inline&space;&space;\sigma_x$ and the resulting normal strain $\inline&space;&space;\varepsilon_x$, i.e
$E&space;=&space;\frac{\sigma_x}{\varepsilon_x}$

Typical values include:
 Material E (GPa) Wood 11 Aluminium 69 Brass 103-124 Titanium 105-120 Iron 190-210 Tungsten 400-410 Silicon Carbide 450 Diamond 1050-1200

In structures the Young's modulus has importance in calculated the deflection or extension of beams due to applied loads, enabling an induced stress to be converted into a strain. As strain is defined as the (change of length)/(original length), then the movement of the structural member can be calculated.