modulus of elasticity


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Related to modulus of elasticity: modulus of rigidity

mo·du·lus of e·las·tic·i·ty

a coefficient expressing the ratio between stress per unit area acting to deform a body and the amount of deformation that results from it.

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.
References in periodicals archive ?
Measurement of transverse strength and modulus of elasticity was done by three-point bending test using Universal Testing Machine (Gotech AI-7000M Servo Control System Universal testing machine, Taiwan).
In the first case, the global modulus of elasticity was considered.
(1) The dynamic modulus of elasticity increases as the temperature decreases, changes quite obviously in the sharp phase change area of water-ice (soil temperature between 0 and -5[degrees]C), and decreases as the dynamic strain increases.
Based on this, it follows that these additives have a synergistic effect, therefore, they are responsible for the significant increase of the modulus of elasticity and yield stress of the films.
The initial and secant modulus of elasticity in cases related to the ABNT NBR 6118:2014 were estimated according Equation 1, 2, 3 and 4, as described earlier.
The modulus of elasticity and the modulus of rupture during flexion could not be calculated for G5 and G6 as the intricate geometry of the structure did not allow the determination or application of a mathematical model that could accurately represent the physical state of the loads, geometry, boundary conditions and behaviour of the materials.
Where: Ea is the modulus of elasticity in Pa, f is the concentrated load at mid span in N, lis the effective length in mm, D is the deformation in mm and d is the diameter of the stalk in mm.
The measured values of the static modulus of elasticity Es for the plain and steel fiber concrete with different percentages of rubber ratios is shown in Figure 7.
Additionally, the mean modulus of elasticity in controls was significantly lower than that of infected birds only at 18 weeks [13].
The modulus of elasticity is directly related to the amount of deformation when the material is subjected to external forces [26, 45].
The modulus of elasticity of un-irradiated and irradiated CS/CC biocomposite films with different CC content is illustrated in Figure 4.
The crown includes, radially on the inside of the tread and radially on the outside of a carcass reinforcement, at least one first layer of rubber mix having a modulus of elasticity which is greater than or equal to 50 MPa, this first layer extending from the median plane of the tire axially to the outside, on both sides of the median plane, only as far as an axial distance from the median plane which is less than the axial distance of the axial end of the crown reinforcement from the median plane.