Search results
Results From The WOW.Com Content Network
Young's modulus is the slope ... a global characteristic of the body that depends ... The Young's modulus of metals varies with the temperature and can be realized ...
Elastic properties describe the reversible deformation (elastic response) of a material to an applied stress. They are a subset of the material properties that provide a quantitative description of the characteristics of a material, like its strength .
This stress is calculated by multiplying the change in temperature, material's thermal expansion coefficient and material's Young's modulus (see formula below). E {\displaystyle E} is Young's modulus , α {\displaystyle \alpha } is thermal expansion coefficient , T 0 {\displaystyle T_{0}} is initial temperature and T f {\displaystyle T_{f}} is ...
The bulk modulus is an extension of Young's modulus to three dimensions. Flexural modulus ( E flex ) describes the object's tendency to flex when acted upon by a moment . Two other elastic moduli are Lamé's first parameter , λ, and P-wave modulus , M , as used in table of modulus comparisons given below references.
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 force per unit area) and strain (the relative deformation). [ 2 ]
Viscoelasticity calculations depend heavily on the viscosity ... where σ is the stress, E is the elastic modulus of the ... Temperature dependence of modulus.
The time-temperature superposition principle of linear viscoelasticity is based on the above observation. [5] Moduli measured using a dynamic viscoelastic modulus analyzer. The plots show the variation of elastic modulus E′(f, T) and the loss factor, tan δ(f, T), where δ is the phase angle as a function of frequency f and temperature T.
It measures the resonant frequencies in order to calculate the Young's modulus, shear modulus, Poisson's ratio and internal friction of predefined shapes like rectangular bars, cylindrical rods and disc shaped samples. The measurements can be performed at room temperature or at elevated temperatures (up to 1700 °C) under different atmospheres. [2]