Young's modulus of elasticity

(redirected from Youngs modulus of elasticity)

Young's modulus of elasticity

coefficient of elasticity expressed as ratio of the force applied to a body in one direction (per cross-sectional body area perpendicular to direction of force), divided by the change in length of the body in the direction of the force

modulus of elasticity

The ratio of a force applied to a material to the increment of change (e.g. increase in length; angular deformation) in that material. Materials with low modulus of elasticity are less resistant to stress, while materials with high modulus of elasticity resist stress and hold their shape better. The SI unit of modulus of elasticity E is the pascal (Pa). Examples: the modulus of elasticity of a PMMA contact lens is about 3000 MPa, it is around 0.4 to 1.5 MPa for silicone hydrogel lenses and 0.3 to 0.5 MPa for hydrogel lenses. Syn. coefficient of elasticity; Young's modulus of elasticity.
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