Young’s modulus table

Sisal, flax, and glass fiber MTs can be classified by their mechanical properties, tensile strength, and Young s modulus (Table 12). 

E = a + bf, where a, b are coefficients, E - Young s modulus. Table 2 contains some structure parameters and physical properties of PP fibers [5]. 

Figure 5 - System Compliance vs. Apparent Young s Modulus (Table 4). = coefficient...

Eor reinforcement, room temperature tensile strength and Young s modulus (stress—strain ratio) are both important. Typical values for refractory fibers are shown in Table 2. 

The cord fatigue phenomenon and effect of twist has been discussed (61). Values of Young s modulus of some belt and carcass cords used in passenger tires are given in Table 4 (62). Poisson s ratio of tire cords is often in excess of 0.5 due to twist the higher the twist, the larger Poisson s ratio of cords. 

Table 4. Values of Young s Modulus for Tire Cord ...

Now for some real numbers. Table 3.1 is a ranked list of Young s modulus of materials - we will use it later in solving problems and in selecting materials for particular applications. Diamond is at the top, with a modulus of lOOOGPa soft rubbers and foamed polymers are at the bottom with moduli as low as 0.001 GPa. You can, of course, make special materials with lower moduli - jelly, for instance, has a modulus of about 10 GPa. Practical engineering materials lie in the range 10 to 10 GPa - a... 

Engineering Materials 1 Table 3.1 Data for Young s modulus, E... 

The table below gives the Young s modulus, , the atomic volume, ft, and the melting temperature, T, for a number of metals. If... 

Estimate the thermal shock resistance AT for the ceramics listed in Table 15.7. Use the data for Young s modulus E, modulus of rupture c, and thermal expansion coefficient a given in Table 15.7. How well do your calculated estimates of AT agree with the values given for AT in Table 15.7 ... 

Fink et al. [17] correlated measurements from different authors and test methods to compare Young s modulus for cellulose of type 1 and II. Most of the authors determined higher characteristic values for type I than for type II (Table 7). 

Table 12 Tensile Strength and Young s Modulus of Sisal, Flax, and Glass Fiber MTs with a Fiber Content of 40% (weight) [60]...

Table 3.1. Young s modulus E at T = 500 K and average molecular mass between crosslinks...

NR with standard recipe with 10 phr CB (NR 10) was prepared as the sample. The compound recipe is shown in Table 21.2. The sectioned surface by cryo-microtome was observed by AFM. The cantilever used in this smdy was made of Si3N4. The adhesion between probe tip and sample makes the situation complicated and it becomes impossible to apply mathematical analysis with the assumption of Hertzian contact in order to estimate Young s modulus from force-distance curve. Thus, aU the experiments were performed in distilled water. The selection of cantilever is another important factor to discuss the quantitative value of Young s modulus. The spring constant of 0.12 N m (nominal) was used, which was appropriate to deform at rubbery regions. The FV technique was employed as explained in Section 21.3.3. The maximum load was defined as the load corresponding to the set-point deflection. 

The tensile properties (tensile strength, Young s modulus, and elongation) of unoriented, noncrystalline films were investigated for those polymers that formed clear films by solvent casting. The results collected in Table I allowed several general conclusions. 

The mass fraction crystallinity of molded PHB samples is typically around 60%. As shown in Table 3, PHB resembles isotactic polypropylene (iPP) with respect to melting temperature (175-180°C), Young s modulus (3.5-4 GPa) and the tensile strength (40 MPa). In addition, the crystallinity of iPP is approximately 65% [18]. Accordingly, the fracture behavior of PHB may be anticipated to be tough at room temperature. Molded PHB samples do indeed show ductile behavior, but over a period of several days at ambient conditions, they slowly become more brittle [82, 85, 86]. Consequently, the elongation to break of the ultimate PHB (3-8%) is markedly lower than that of iPP (400%). 

Young s modulus may be calculated from the flexure of other kinds of beams. Examples are given in Table 1 (11,12). The table also gives equations for calculating the maximum tensile stress am ix and the maximum elongation en,.,x, which are found on the surface at the center of the span for beams with two supports and at the point of support for cantilever... 

Table 1 Young s Modulus from Flexure of Beams...

In Table 1 are listed conversions between Lame coefficients, Young s modulus, Poisson s ratio, /, and C,/k/ for an isotropic elastic homogeneous medium. 

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