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Modeling of the Mechanical Properties of Carbon-black Reinforced Rubber Blends by Machine Learning Techniques R.
Coop., 48270, Markina-Xemein -Spain aroberto.fernandezm@ehu.es, brhernandez@leartik.com, cjulen.ibarretxe@ehu.es, dpello.jimbert@ehu.es, emaider.iturrondobeitia@ehu.es, fteresa.guraya@ehu.es Keywords: Computational modeling; Design of experiments; Mechanical properties; Rubber blend.
Mastering the relationship between the final mechanical properties of carbon black reinforced rubber blends and their composition is a key advantage for an efficient design of the composition of the blend.
Here, a design of experiments (DoE) was used to optimize the value of the three response variables (output variables) by changing the values of the factors (input variables) that affect the response.
Once the DoE was defined, the rubber blends were prepared and their mechanical properties measured by several standard tests.

Influences of Isotropic and Anisotropic Material Properties on Stress Intensity Factors of the Crack Tip under Biaxial Stress T.
We determined the stress intensity factors of specimens using both photoelasticity and caustics method.
In this study, we conducted experiments to reveal how the anisotropic properties of polymer affect to the deformation behaviors in the vicinity of the crack tip under equal biaxial stress conditions.
Fig. 2 and Table 1 show the shapes, dimensions and optical properties of the specimens.
We examined how the isotropic and anisotropic properties of the polycarbonate materials affect differently the crack tip under equal biaxial stress using photoelasticity and the caustic method.

Effect of Sintering Temperature on the Mechanical Properties of Rare Earth Oxides Toughened Cermet Tool Materials L.Q.
The results showed that the mechanical properties of Ti(C,N) based ceramics were greatly influenced by sintering temperature.
Three factors, sintering temperature, grain size and quantity of additive, greatly affect sintering speed, sintering density and microstructure.
In order to compare with mechanical properties each other, four kinds of hot-pressed processes were used.
Low sintering temperature will make materials to be low densification and low mechanical properties.

Table 2 showed the mechanical properties of low carbon steel JIS SS400 [9].
Mechanical Properties of Low Carbon Steel JIS SS400.
Mechanical Properties Value Tensile Strength, Ultimate 415-515 MPa Tensile Strength, Yield 230 MPa Elongation at Break 20% Bulk Modulus 160 GPa Shear Modulus 80 GPa MIG Welding.
Factors that are expected to affect the surface residual stress after the deep rolling process are three factors: rolling pressure, rolling speed and the number of passes.
Table 8 shows that the most influential factors affecting the residual stress were factor C (Number of passes), factor A (Rolling pressure) and factor B (Rolling speed) respectively.

The mainly influencing factors were analyzed including vibration acceleration, frequency, exposure time and other factors.
Influencing Factors In a certain vibration environment of the human body, the blood capillary tension and smooth muscle contractile properties change.
In the vibration and shock environment, to human body caused by these results, there are three main factors affecting the human comfort.
Human vibration comfort is the result of three factors working together.
Other influencing factors.

High quality products were obtained by hot-extrusion method and their texture and thermoelectric properties were measured.
Extrusion temperature dependence of power factor and figure of merit Figs. 3 and 4 shows the various thermoelectric properties of tested materials conducted PDSed and hot-extrusion.
The change of (1 1 0) plane which is perpendicular to the basal plane will affect the thermoelectric properties.
Hot-extruded materials show high thermoelectric properties than normally PDSed sample.
It means that more preferred structure affects the thermoelectric properties.

The most important factors affecting the strengthening of the ceramic pellets were evaluated.
In all cases, both the structure and the mechanical properties of the polymer coated ceramic samples are affected by various factors of the coating process, namely: a removal technique of an excess polymer, concentration of the polymer in a solution, a heat treatment stage, a number of dipping (Table 1) and so on.
The statistical experimental design can determine the factor effects on characteristic properties and select the optimum conditions for these factors.
By the raw data analysis, the effects of several factors on the mechanical strength have been analyzed.
For ceramics, its density and pore size seriously influence the mechanical properties.

The microstructures and mechanical properties of the Mg-Zn-Er alloys have been investigated.
It is important to improve the mechanical properties of magnesium alloys.
Tensile stress - strain curves of these alloy All about results indicates that the most important factors affecting the mechanical properties are classified two sides, i.e. refinement of the microstructure and precipitation of the secondary phase.
The formation of the secondary phase is one of the most important factors to influence the mechanical properties of the magnesium alloys.
(2) The existence of the I-phase leads to improvement of the mechanical properties.

The Effect of Aging Temperature on Mechanical Properties of Banana Pseudostem Fiber Reinforced Polymer Composite Siti Nur Zafirah M.
Tensile, flexural and impact tests were performed to investigate the mechanical properties of banana pseudostem fiber reinforced composite.
Aging or degradation induces detrimental changes in mechanical properties and temporary or permanent transformation in matrix-fiber interfaces [7].
Overall from this result, the oxygen content of the environment is a principal factor affecting the strength reduction [9].
Tensile, flexural and impact tests were performed on non-aging and aging BPFRC in order to compare the mechanical properties.

Finite Element Analysis on Mechanical Properties of Lathe Spindle Y.M.
Yu Zhongyuan University of Technology, Zhengzhou, 450007, China flackstorm@163.com Keywords: Lathe spindle, Mechanical properties, Finite element analysis, ANSYS Abstract.
The ANSYS software was used to carry out finite element analysis on the mechanical properties of lathe spindle, taking C7620 lathe as research object.
Through static analysis, the linear static mechanical properties of spindle in specific operation are obtained, including the stress and deformation of spindle in processing; by dynamic analysis, the vibration characteristics of spindle including the natural frequency and vibration mode are determined, and whether the spindle speed is reasonable or not is judged.
During the modeling, for easier finite element analysis and the improvement of computational efficiency, the model is simplified without affecting the final calculation precision, mainly including that thread and keyway are processed as entities and the partial features such as tool escape and chamfer are ignored.