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Shear modulus, variation with Poisson ratio

Figure 3. Variation of the derived properties of the rubber phase as a function of the input properties. Top Variation of the bulk modulus, K, with the Poisson ratio, v, for different values of Youngs modulus, E. Bottom Variation of the shear modulus, G, with the Poisson ratio, v, for different values of Youngs modulus, E. Figure 3. Variation of the derived properties of the rubber phase as a function of the input properties. Top Variation of the bulk modulus, K, with the Poisson ratio, v, for different values of Youngs modulus, E. Bottom Variation of the shear modulus, G, with the Poisson ratio, v, for different values of Youngs modulus, E.
Figure 4.7 Theoretical variation in tensile modulus (E), shear modulus (C) and Poisson s ratio (v) with glass content (Vetrotex). Figure 4.7 Theoretical variation in tensile modulus (E), shear modulus (C) and Poisson s ratio (v) with glass content (Vetrotex).
Moduli and Poisson s Ratio. The Young s modulus of vitreous sihca at 25°C is 73 GPa (<1.06 x 10 psi), the shear modulus is 31 GPa (<4.5 X 10 psi), and the Poisson s ratio is 0.17. Minor differences in values can arise owing to density variations. The elastic modulus decreases with increasing density and Poisson s ratio increases (26). [Pg.506]

A simplified performance index for stiffness is readily obtained from the essentials of micromechanics theory (see, for example. Chapter 3). The fundamental engineering constants for a unidirectionally reinforced lamina, ., 2, v.,2, and G.,2, are easily analyzed with simple back-of-the-envelope calculations that reveal which engineering constants are dominated by the fiber properties, which by the matrix properties, and which are not dominated by either fiber or matrix properties. Recall that the fiber-direction modulus, is fiber-dominated. Moreover, both the modulus transverse to the fibers, 2, and the shear modulus, G12. are matrix-dominated. Finally, the Poisson s ratio, v.,2, is neither fiber-dominated nor matrix-dominated. Accordingly, if for design purposes the matrix has been selected but the value of 1 is insufficient, then another more-capable fiber system is necessary. Flowever, if 2 and/or G12 are insufficient, then selection of a different fiber system will do no practical good. The actual problem is the matrix systemi The same arguments apply to variations in the relative percentages of fiber and matrix for a fixed material system. [Pg.393]

The theoretical variation in tensile modulus, shear modulus and Poisson s ratio with glass content is shown in Figure 4.7 for comparison. [Pg.65]


See other pages where Shear modulus, variation with Poisson ratio is mentioned: [Pg.390]    [Pg.411]    [Pg.411]    [Pg.50]    [Pg.660]    [Pg.268]    [Pg.8300]    [Pg.383]    [Pg.352]    [Pg.390]    [Pg.323]   
See also in sourсe #XX -- [ Pg.9 ]




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