Modulus of elasticity Young

M = Modulus of elasticity (Young s Modulus) in psi, or modulus of plasticity. 

A measure of the stiffness of a polymer is the modulus of elasticity (Young s modulus) E. It can be calculated fi om the stress-strain curve as the slope in the linear region of Hooke s law. It should be considered that due to the definition E = o/e for rubberlike materials which show a rather large extension e at quite... 

Modulus of Elasticity. Young s modulus for TNT is 54 x IO10 dynes/cm2 (Ref 30)... 

Figure 10.6 The modulus of elasticity. Young s modulus, is defined as the slope of the stress stiain curve in the linear (elastic) region...

Biocoral is composed of crystaUine calcium carbonate or aragonite, the metastable form of calcium carbonate. The compressive strength of Biocoral varies from 26 (50% porous) to 395 MPa (dense) and depends on the porosity of the ceramic. Likewise, the modulus of elasticity (Young s Modulus) of Biocoral varies from 8 (50% porous) to 100 GPa (dense) [Biocoral, 1989]. 

Fig. 2 Temperature-dependence of the modulus of elasticity (Young s modulus) of plastics (diagram). As an alternative to this modulus, tension a can also be plotted against constant elongation e or viscosity i), or other properties [2]. MSRe x,d- main softening range of elastomers, thermoplastics, duroplastics, Tgt associated glass transition temperature, Tfi flow point of the amorphous thermoplastic, //////// application range, application range...

Modulus of Elasticity (Young s Modulus) Modulus of elasticity is a measure of how easily a material will stretch vdien pulled (subject to a tensile force) or how well the material will shorten len pushed (subject to a compressive fiirce). The latter the value of the modulus of elasticity is, the la r the required fiirce would be to stretch or shorten the material. For example, the modulus of elasddty of aluminum alloy is in the range of 70 to 79 GPa, whereas steel has a modulus of elasticity in the range of 190 to 210 GPs therefore, steel is approximately 3 times stififer than aluminum alleys. 

Figure 5.17 shows stress-strain curves of neat PVAc and its nanocomposites in different PEDOT-PSS contents at 30 1°C. The slope of the stress-strain curve in the elastic deformation region is the modulus of elasticity (Young s modulus—elastic modulus). It represents the stiffness of the material resistance to elastic strain. 

Equation [9] is one of the main results of the classical theory of high elasticity. At small elongation eqn [9] yields the following expression for the modulus of elasticity (Young s modulus) of polymer network ... 

Their method of production is summarized in Fig. 28.28c in which atom X represents an arbitrary N content. Processing conditions (heat treatment in particular) determine the mechanical properties of the carbon fibres. Both pitch- and PAN-based carbon fibres (Fig. 28.29) are stronger and have a higher modulus of elasticity (Young s modulus) than those derived from rayon. They therefore have wider applications. Carbon fibres usually require a protective coating to provide resistance to reaction with other elements at elevated temperature. 

The elastic modulus ( modulus of elasticity , Young s modulus or tensile modulus ) is the ratio of the applied stress to the strain it produces in the region where strain is proportional to stress, i.e. in the initial straight-line portion of the stress-strain curve. Modulus is primarily a measure of stiffness, and plastic parts should be designed such that service behaviour normally falls in this linear region. 

It has been shown this equation is not suitable for all materials [7,8]. Therefore new equations were introduced into the theory. These new equations are not of empirical nature as equation (1) is but they are derived from a modulus of volume transformation for particulate solids that is analogy to the modulus of elasticity (Young modulus) for solids. 

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