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The shape of grate gars is similar to the shape of angle bending, so it can get the stress concentration factor through referring to the relevant part of the handbook.
The stress concentration coefficient is 1.2.It inputs the value of the fatigue properties on high chromium cast iron and obtains the curve shown in Figure 9.
For the cyclic thermal strain caused by the strain fatigue there will be a sudden fracture affected by mechanical shock when its fatigue crack and extended to a certain extent.
As the related documents shown, in many complicated factors the stress concentration and mean stress is the greatest harm factor on the fatigue strength.
Mechanical Industry Press in Beijing,1996

Introduction The aluminum bronze alloys are a family of alloys of copper which provides a combination of mechanical and chemical properties unequaled by any number of other alloys.
The great difficulty is to obtain a reliable safety factor without affecting the weight and value of the final product.
The screws of turbine blades, which are constantly subjected to high temperatures, have parts made of material which allows the coping not only the effect of heat but also the cavitation erosion, one of the factors responsible for corrosion.
The choice of track to be used for the machining parameters during the execution of the work depends on several factors, including: the type of material to be machined, the machine available for work and the cutting tool selected.
XIV Brazilian Congress of Mechanical Engineering, 1, 1-8.

The microhardness after annealing is 10 HV0.5 lower, but the affected depth is not changed.
It seems reasonable to assume that the amount of precipitated ultra-fine grain has a direct effect on the mechanical property of the current Ti alloy.
Microhardness The mechanical property measurements recorded indicate a significant increase in hardness and strength in surface layers after LSP.
The hardened depth affected by LSP is about 500μm.
The mechanism of the LSP induced hardness increasement includes two factors.

However, magnesium sheets extruded by traditional methods show poor mechanical properties due to strong basal texture (0001).
As a result, it helped to weak basal texture and to improve mechanical properties of Mg-alloys strips.
In magnesium alloys, microstructural and textural factors are known to have an important influence on the mechanical properties of products [19].
Huang, Microstructure and mechanical properties in an AZ31 magnesium alloy sheet fabricated by asymmetric hot extrusion, Materials Science and Engineering A. 496 (2008) 512-516
Xu, An effective approach called the composite extrusion to improve the mechanical properties of AZ31 magnesium alloy sheets, Materials Science and Engineering A. 655 (2016) 339-345

In the paper is investigated a method of ultrasonic connection of copper wires so that its joining has a higher mechanical strength.
In the ultrasonic joint process, there is no substantial change in the properties of the material in the joining zone since the bond is formed without the melting of the welding materials.
The paper [1] presents a research study that proposes to investigate the mechanical and metallographic aspects of the ultrasonic welding of Cu-Cu wires, to determines and evaluates the factors that govern the welding.
The components to be welded will be merged due to sonotrode oscillation receiving a high frequency mechanical relative movement.
This will result in a homogeneous welding that ensures high mechanical strength and good electrical conductivity.

The efficacy of nanoimprint lithography techniques applied on thin films of these nanocomposites greatly depends on process steps that involve compression, elongation and viscoelastic properties of the materials that are used.
On the other hand contact mode operation was not required as all the mechanical properties of interest were measured by the complementary nanoindentation setup.
The preliminary surface investigation by means of AFM permitted to ensure that the RMS of the samples is low enough to avoid major influence on the evaluation of their mechanical properties [7].
Anyway, all the factors which usually affect the nanoindentation measurements (i.e. calibration procedure, electromechanical noise, tip blunting etc.), and consequently the physical quantities calculated in the present very low-load nanoindentation tests may result somewhat enhanced [6].
This effect is reasonable, as the occurrence of larger NRs aggregates occasionally affecting the measured surface area becomes more probable in the larger scans on increasing Φ.

The mechanical properties of the material have been represented in the Table 1.
Table 1 Mechanical properties of Al 7075-T6 Materials Range Unit Modulus of Elasticity 7.2e10 N/m^2 Poisson's ratio 0.33 - Ultimate Tensile Strength 5.7e8 N/m^2 Tensile Yield Strength 5.05e8 N/m^2 Thermal expansion coefficient 2.36e-5 1/K Thermal Conductivity 130 W/(m.K) Fig. 3 Billet model in forging In the actual operating condition, centrifugal force is acting on the connected pin between the holder and the arm according to the rotating of the propeller shaft.
On the other hand the minimum safety factor, 7.8, was much higher than the usual unmaned aircraft safety factor, 3.
It can be affected to the increasing of forming load.
And the minimum safety factor, 7.8, was much higher than the usual unmaned aircraft safety factor, 3.

Working parameters setting in AFM and rheological properties of the abrasive medium markedly affect the efficiency of machining.
David et al. [8-10] studied the rheological properties of the abrasive media in AFM, indicating that not only could temperature significantly influence the medium viscosity, but also could a slight temperature increase drastically reduce the medium viscosity.
For studying the efficiency and wear behavior effectively, abrasive and workpieces were two main factors in AFM.
Fletcher: Proceedings of the Institution of Mechanical Engineers Vol. 209 (1995), p.409
Pai: Journal of the Mechanical Science and Technology Vol. 21 (2007), p. 1593

However, the factors for effecting thermal conductivity of Si3N4 are still under debate though microstructural factors (including grain size, average grian-boundary film thickness and the amount of glassy phase), lattice oxygen and sintering additives especially rear-earth oxide additives have been reported to make a difference [6,7,8].
Compared with conventional techniques, this method could develop unique Si3N4 with graded mechanical properties and have the possibility of getting complete densification [14].
There are various factors affecting thermal conductivity of Si3N4, as mentioned above and among them, Microstructure is important in understanding the thermal conductivity of a ceramic since both the phases and the distribution of the phases have a significant effect on heat transport.
Kanzaki, Thermal Conductivity of b-Si3N4: I, Effects of Various Microstructural Factors, J.
Fu, Effects of α/β ratio in starting powder on microstructure and mechanical properties of silicon nitride ceramics, Ceram.

The numerical simulations evaluate the influence of various factors on the production process.
The composition of AA6061was shown in the Table 1 and properties of AA6061 shown in the Table 2 and Table 3.
Table 1 Chemical Composition of AA6061 COMPONENT Wt % Al 95.8-98.6 Cr 0.04-0.35 Cu 0.15-0.4 Fe Max 0.7 Mg 0.8-1.2 Mn Max 0.15 Si 0.4-0.8 Ti Max 0.65 Zn Max 0.25 Others Max 0.15 Table 2 Physical Properties PROPERTIES VALUES Density 2.7 g/cm3 Melting point 580o Modulus of elasticity 70-80 GPa Poisson’s ratio 0.33 Table 3 Mechanical Properties of AA6061 PROPERTIES VALUES Brinell hardness 95 Vickers hardness 107 Ultimate tensile strength 260-310 MPa Tensile yield strength 276 MPa Fatigue strength 96.5 MPa Shear strength 207 MPa Shear modulus 26 GPa Sample Preparation The sample is prepared by cutting the sheet to the required dimension.
The uncertainty of experimental method in determination of the FLD was affected by many different factors, such as existence of the error in die manufacturing, implementation of deep drawing test, measurement by the profile projector and curve fitting.
Compressibility prediction of sheets steel with high strength properties.