The invention has the following beneficial effects that the calculation method for the total tensile stress on the cross section of the metal sleeve under the action of the centrifugal force is established, a way is provided for design of the cast metal sleeve of the centrifuge, and the design...
The compressive stress formula is the ratio between the compressive force per unit area. In the SI, the unit for compressive stress is newtons per meters squared. What is the difference between tensile and compressive stress? Although the calculation for both stresses are similar, the tensile stre...
A simple method has been developed for the calculation of stress intensity factors for cracks growing by a shear mechanism under contact loading (typical o... DI Fletcher,JH Beynon - 《Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology》 被引量: 0发表...
Calculated true stress–strain values are entered in the table above. As a sample calculation we consider the load = 6200 lb, elongation = 0.4 in. data point, for which e = Δl/l0 = 0.4/2 = 0.2 in./in. or 0.2 m/m. As ε = ln(1 + e), ε = ln(1 + 0.2) = 0.182. To...
Examples of room temperature tensile behavior for a number of polymers are illustrated inFig. 1, as plots of true tensile stress, σ, versus local logarithmic strain, ε (G’Sellet al.1992). Amorphous PVC, PC and semicrystalline nylon 66, and PEEK have glass transition temperatures above room...
As shown in Table 3, two off-axis curves of a composite are used for reverse calculation of interphase properties. Other off-axial curves are used as validation. Figures 6–8 illustrate the comparison between theoretical and experimental stress-strain curves. Tables 5–7 are strength prediction ...
The calculation of the notch-stress-intensity factors (NSIFs) of the notched specimens tested was accomplished by 3D finite element analysis. It was found that both the PS and the MS have satisfactory agreement with the experimental data in all the loading cases tested. Discrepancies between the...
Table 1. Calculation results of load action width and tensile strength. As can be observed in Figure 8, with the increase in loading width, the maximum value of stress component 𝜎𝑥σx reveals a decreasing trend. The tensile strength of the specimen increases with the increase in the ...
Thus, for example, SiOC has a thermal expansion coefficient larger than that of SiN that is used for the calculation of the strain. Accordingly, the same effect is provided even when the thickness of a SiOC layer, a SiC layer, a SiCN layer, a SiOCN layer, or the like is smaller than...
Further-more, for all three sources, the equations of a linear regression calculation for are shown as these are material data values which are often necessary in simulations.Measurement uncertaintyFor an analysis of measurement uncer-tainty, three key points have to be consid-ered: the ...