Question

youngmoduls,bulkmoduls

Answer 1

Young's moduls:

Young’s Modulus (also referred to as the Elastic Modulus or Tensile Modulus), is a measure of mechanical properties of linear elastic solids like rods, wires, and such. There are other numbers that give us a measure of elastic properties of a material, like Bulk modulus and shear modulus, but the value of Young’s Modulus is most commonly used. This is because it gives us information about the tensile elasticity of a material.

FORMULA:

                                    E = σ/ϵ

where,

E is Young’s modulus in Pa

is the uniaxial stress in Pa

ε is the strain or proportional deformation

Bulk moduls:

The bulk modulus of elasticity is one of the measures of the mechanical properties of solids. Other elastic modules include Young’s modulus and Shear modulus. In any case, the bulk elastic properties of a material are used to determine how much it will compress under a given amount of external pressure. Here it is important to find and note the ratio of the change in pressure to the fractional volume compression.

FORMULA:

                                         B = ΔP /(ΔV/V)

Where,

B: Bulk modulus

ΔP: change of the pressure or force applied per unit area on the material

ΔV: change of the volume of the material due to the compression

V: Initial volume of the material in the units of in the English system and N/m2 in the metric system.

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