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### Young s modulus and temperature Physics Forums

Apr 26 2014 · 6 994. 293. Young s modulus is temperature dependent. Here are some graphs for metals. If you want to do an experiment to measure the change in Young s modulus with temperature that is not easy to do with metals because the changes are small for temperatures that are easy to work with (e.g. between 0 C and 100 C) Plastics and similar materials

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Continuum elastic theory predicts a 1/R2 variation of the strain energy with an elas-tic constant equal to C 11 of graphite (which corresponds to the Young s modulus parallel to the basal plane) independent of the tube diameter 7 . Therefore in the classical approx-imation the Young s modulus is

Get Price### Temperature and strain-rate dependent fracture strength of

For a linear elastic LE material with Young s modulus K and r can be deﬁned as t ˙= K t ˙= Kt r = Kt r. 3 Substituting Eqs. 1 and 3 into Eq. 2 we have r ˙ T = U 0 k ln K˙ 0 n skT T 4 which shows the linear relation between fracture strength and temperature where ln ˙ K 0/n skT can be considered as a constant.12 26 The

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Hook s law sets up linear dependence between stresses and strains. Young s modulus and Poisson s ratio determine deformations of material in longitudinal and transversal directions in relation to applied load. One dimensional model of elastic material is performed by a spring with stiffness equaling to the Young s modulus (Fig 1a).

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Apr 27 2014 · Elastic modulus (young s modulus of elasticity) Determines resistance to flexes and deformation of the anterior of bending when loaded. Elastic modulus describes the relative stiffness or rigidity of a material which is measured by the slope of the elastic region of the stress-strain graph. OR The measure of elasticity of a material is

Get Price### Modulus of Elasticity of ConcreteCivil Engineering

Modulus of elasticity (also known as elastic modulus the coefficient of elasticity) of a material is a number which is defined by the ratio of the applied stress to the corresponding strain within the elastic limit. Physically it indicates a material s resistance to being deformed when a stress is applied to it.

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In other words σ is proportional to e this is expressed σ = Ee where E the constant of proportionality is called Young s modulus. The value of E depends on the material the ratio of its values for steel and rubber is about 100 000. The equation σ = Ee is known as Hooke s law and is an example of a constitutive law. It expresses in

Get Price### 12.3 Stress Strain and Elastic Modulus University

For a small stress the relation between stress and strain is linear. The elastic modulus is the proportionality constant in this linear relation. Tensile (or compressive) strain is the response of an object or medium to tensile (or compressive) stress. Here the elastic modulus is called Young s modulus.

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Aug 30 2019 · The elastic moduli determined as a function of temperature are shown in Fig. 2 where the experimental uncertainties determined using two independent experiments are indicated by the thickness of the black lines in Fig. 2.Young s modulus (E = 90 GPa ± 1 GPa) and shear modulus (G = 35.8 GPa ± 0.2 GPa) determined at room temperature are respectively 12 and 26 larger than

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Young s modulus of these ﬁlms was determined by monitoring the sensor s resonant frequency both before and after deposition. By measuring the ﬁlm thickness this frequency shift can be directly related to the ﬁlm elastic modulus. All thin ﬁlms were sputter deposited at room temperature

Get Price### What is Young s Modulus or Modulus of Elasticity

Apr 05 2018 · Young s Modulus is a mechanical property of the material where it can be called as modulus of Elasticity/Elastic Modulus. An English physician and physicist named Thomas Young described the elastic properties of materials. Young s modulus can be

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For example upon increasing the number of primary loops per junction from 0.05 to 0.25 the Young s modulus of polymeric gels was shown to decrease from ∼10 to 1 kPa. In addition to controlling network strands DP and concentration of defects modification of network junctions is another tool for controlling network topology and properties.

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Young s modulus or modulus of elasticity is defined as the ratio of normal stress to linear normal strain (both in the direction of applied load). The shear modulus or modulus of rigidity is defined as the ratio of shear stress to linear shear strain.

Get Price### Temperature dependence of elastic moduli in a refractory

Aug 30 2019 · The elastic moduli determined as a function of temperature are shown in Fig. 2 where the experimental uncertainties determined using two independent experiments are indicated by the thickness of the black lines in Fig. 2.Young s modulus (E = 90 GPa ± 1 GPa) and shear modulus (G = 35.8 GPa ± 0.2 GPa) determined at room temperature are respectively 12 and 26 larger than

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the time dependent partly on the speed of sound in the steel cable and partly on the length of the cable). This use of the word elastic must not be confused with the use of the term as in "elastic band " where "elastic" is taken to mean highly extensible. Young s modulus is a measure of stiffness in simple extension or compression.

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Apr 27 2014 · Elastic modulus (young s modulus of elasticity) Determines resistance to flexes and deformation of the anterior of bending when loaded. Elastic modulus describes the relative stiffness or rigidity of a material which is measured by the slope of the elastic region of the stress-strain graph. OR The measure of elasticity of a material is

Get Price### Young s ModulusUniversity of Washington

The Young s Modulus of a material is a fundamental property of every material that cannot be changed. It is dependent upon temperature and pressure however. The Young s Modulus (or Elastic Modulus) is in essence the stiffness of a material. In

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The constant E is the modulus of elasticity Young s modulus or the tensile modulus and is the material s stiffness. Young s modulus is in terms of 10 6 psi or 10 3 kg/mm 2. If a material obeys Hooke s Law it is elastic. The modulus is insensitive to a material s temper. Normal force is directly dependent upon the elastic modulus.

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Young s ModulusTensile and Yield Strength for common Materials. Tensile Modulusor Young s Modulus alt. Modulus of Elasticityis a measure of stiffness of an elastic material. It is used to describe the elastic properties of objects like wires rods or columns when they are stretched or compressed. Tensile Modulus is defined as the.

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The Young s modulus the equilibrium length and the residual stress of a series of prismatic wires are found to have a size dependence that scales like the surface area to volume ratio for all

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12. The distortion of the earth s crust is an example of sheer on a large scale. A particular rock has a sheer modulus of 1.5 x10. 10 Pa (N/m2)(Shear Modulus S). What shear stress is applied when a 10 km layer (h) of rock is sheared a distance of 5 m (∆x). Data Equation Math Answer S = 1.5 x1010 5Pa

Get Price### MECHANICAL PROPERTIES OF ENGINEERING MATERIALS

3.1. Hooke s Law o for materials stressed in tension at relatively low levels stress and strain are proportional through o constant E is known as the modulus of elasticity or Young s modulus. Measured in MPa and can range in values from 4.5x10440x107 MPa The engineering stress strain graph shows that the relationship between stress and

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- Failure occurs once the stress exceeds the elastic (yield point) limit of the material. • Long slender columns fail by bucklinga function of the column s dimensions and its modulus of elasticity.Buckling is the sudden uncontrolled lateral displacement of a column at

Get Price### Young s ModulusTensile and Yield Strength for common

Young s ModulusTensile and Yield Strength for common Materials. Tensile Modulusor Young s Modulus alt. Modulus of Elasticityis a measure of stiffness of an elastic material. It is used to describe the elastic properties of objects like wires rods or columns when they are stretched or compressed. Tensile Modulus is defined as the.

Get Price### 12.3 Stress Strain and Elastic Modulus University

For a small stress the relation between stress and strain is linear. The elastic modulus is the proportionality constant in this linear relation. Tensile (or compressive) strain is the response of an object or medium to tensile (or compressive) stress. Here the elastic modulus is called Young s modulus.

Get Price### Elasticity (physics)Wikipedia

Young s modulus and shear modulus are only for solids whereas the bulk modulus is for solids liquids and gases. The elasticity of materials is described by a stress–strain curve which shows the relation between stress (the average restorative internal

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12. The distortion of the earth s crust is an example of sheer on a large scale. A particular rock has a sheer modulus of 1.5 x10. 10 Pa (N/m2)(Shear Modulus S). What shear stress is applied when a 10 km layer (h) of rock is sheared a distance of 5 m (∆x). Data Equation Math Answer S = 1.5 x1010 5Pa

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A piece of copper having a rectangular cross-section of 1 5. 2 m m 1 9. 1 m m is pulled in tension with 4 4 5 0 0 N force producing only elastic deformation. Calculate the resulting strain (Modulus of elasticity of copper Y = 4 2 1 0 9 N m − 2)

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As for shear modulus and Young s modulus the trend is similarly to the bulk modulus. The Young s modulus is used to provide a measure of the capability of re-sisting the tension and pressure in the range of elastic deformation 27 . Generally speaking the larger the Young s modulus is the harder it is to deform the material.

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