Tensile elastic modulus

Type of Fiber Reinforcement Specific Gravity Density lb./in.3 (g/cm3) Tensile Strength 103 psi (GPa) Specific Strength 106 in. Tensile Elastic Modulus 106 psi (GPa) Elastic Modulus 108 in. 

Kalyanasundaram, Kumar, and Kuloor (K2) found the influence of dispersed phase viscosity on drop formation to be quite appreciable at high rates of flow. The increase in pd results in an increase in drop volume. To account for this, the earlier model was modified by adding an extra resisting force due to the tensile viscosity of the dispersed phase. The tensile viscosity is taken as thrice the shear viscosity of the dispersed phase, in analogy with the extension of an elastic strip where the tensile elastic modulus is represented by thrice the shear elastic modulus for an incompressible material. The actual force resulting from the above is given by 3nRpd v. 

Figure 3-1 illustrates the trends in tensile strength, as a function of temperature, for the small diameter ceramic fibers that were available in the late 1980s (Pysher et al., 1989). The tensile elastic modulus was also measured as a function of temperature (Figure 3-2a and Figure 3-2b). Data on fiber strength have been updated and generalized by DiCarlo and Dutta (1995) and are included in Figure 3-4. The stiffness properties of ceramic fibers are very similar to those of bulk ceramics with comparable microstructures (e.g., the elastic modulus of bulk glass-bonded mullite is similar to 3MNextel 480 fiber).

FIGURE 8. Tensile Elastic Modulus versus 600°C Oxidation Time for SiOC Nextel 312 BN 2-D Composites... 

The UCSB Nextel 720 reinforced material with its lower stiffness mullite matrix has a 45° tensile elastic modulus of only 23 MPa, or less than 40% of its fiber direction stiffness [142]. 

TYPE OF FIBER REINFORCEMENT SPECIFIC GRAVITY DENSITY LB/IN TENSILE STRENGTH 10 PSI SPECIFIC STRENGTH 10 IN. TENSILE ELASTIC MODULUS 10 PSI SPECIFIC ELASTIC MODULUS 10 IN. 

Transverse tensile strength Tensile elastic modulus, E Shear modulus, G (calculated) Density... 

B. Crist, C. J. Fisher, and P. R. Howard, Mechanical Properties of Model Polyethylenes—Tensile Elastic Modulus and Yield Stress , Macromolecules 22, 1709-1718 (1989). 

Crist B, Fisher CJ, Howard PR (1989) Mechanical Properties of Model Polyethylenes Tensile Elastic Modulus and Yield Stress. Macromolecules 22 1709-1718 De Rosa C, Auriemma F (2006) Structural-mechanical phase diagram of isotactic polypropylene. J Am Chem Soc 128 11024... 

Temperature (°F) Orientation (degrees) Tensile strength (ksi) Failure strain (minJin.) Elastic modulus (1(P psi) Tensile Elastic modulus (1(P psi) Flexure Coefficient of expansion (10 /°F)... 

Crist, B., Fisher, C.J. and Howard, P.R. (1989) Mechanical properties of model polyethylenes tensile elastic modulus and yield stress. Macromolecules, 22,1709. 

JS is the tensile elastic modulus). The increase of the crack length produces additional surfaces on both sides, and this requires a work, AW, which is proportional to their area... 

From the Fig. 12 we can see that the compound mixed by the VCR screw has the strongest tensile elastic modulus, the pure LDPE has the weakest tensile elastic modulus, KB screw provides secondary tensile elastic modulus and NORM screw provides the third tensile elastic modulus. According to the reference [5], we concluded that the VCR element has the best dispersive mixing abihty and the normal screw... 

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