Kramer, E. J. (1974), The stress-strain curve of shear-banding polystyrene , Jour. Micromol Sci-Phy. B, 10 , 191–202.Kramer, E. J. , “ The Stress-strain Curve of Shear-banding Polystyrene ”, J. Macromol. Sci., Part B, 10, 191 – 202 (1974)...
Tensile strength (MPa), elongation at break (%), Young's modulus (MPa), and toughness (measured by the area bellow the stress versus strain curve (J/m3)) were evaluated. 3. Results and Discussions Table 1 presents the values of number-average (M‾n) and the weight-average molecular ...
Tensile stress at yield MPa ISO 527-2 42–59 21–43 Elongation at yield % ISO 527-2 1.5–3.0 1.4–2.0 Charpy impact strength at +23 °C KJm−2 ISO 179/1eU 10–28 70–N.B. at −30 °C KJm−2 ISO 179/1eU 2–4 50–160 a GPPS: General purpose polystyrene. b IPS: Im...
the stress strain curve was extended exponentially at large strains [17]. The extended curve is shown in Figure9. Also, one point integration solid element was used with hourglass control type 2 [18]. To avoid mesh tangling in high compression...
The load-reducing material is EPS, and its compressible stress-strain curve of EPS is shown in Figure 2. The physical parameters of standard sand and EPS are given in Tables 1 and 2, respectively. Figure 1 Open in figure viewerPowerPoint Gradation curve. Figure 2 Open in figure viewer...
Master curves for the biaxial stress growth coefficient η deviates from a linear viscoelastic curve at very small strain such as 0.1, and then approaches a quasi steady state. The quasi-steady-state viscosity ηB,qs decreases with the strain rate ηB. At very small strain rates...
The processability of crystal grade PS is excellent; however, it is prone to stress cracking in specific environmental conditions. In comparison, HIPS is tougher, having improved impact resistance, and thus is mostly utilized in thermoforming. HIPS is characteristically translucent to opaque in ...
As shown in Figure 1c, the stress-strain curve changes irregularly with the foaming pressure. In addition, the sample density changes with the increase in the foaming pressure (28). However, as shown in Figure 1d, the compressive elastic modulus and compressive strength of the PS-MCF ...
The increase in yield stress confirms the coupling role of the copolymer and is in agreement with the observed emulsification curves. The reduction of yield stress and increase in ultimate strain with the copolymer concentration demonstrate the plasticizing effect of the interfacial agent. The result ...
It is not difficult to see that the rABS/rHIPS blends has the smallest stress-strain curve area. Moreover, the area of the stress-strain curve increases gradually after the addition of SBG, which reflects the transition from brittle material to ductile material in the whole process. The ...