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is the design variable, the coefficients are called the effects of the factors.
Fig.1 Geometry of planet carrier and selected design variable Fig.2 Distribution of the design points Fig.3 FE meshing model Fig.4 Boundary conditions The material properties and the boundary condition.
The mechanical properties of the material are given in table 2.
Each load is 7.92MPa (Fig.4.D.E.F) Table 1 Mechanical properties of the material Material Name Young’s Modulus(N/m^2) Poisson’s ratio Density(kg/ m^3) Yield strength(N/m^2) QT700-2 1.69E+11 0.305 7090 4.20E+08 42CrNiMo 2.12E+11 0.28 7850 9.30E+08 Result and discussions Response surface analysis.
“Mechanical Optimization Design (Section2)”, Beijing: Metallurgy Industry Press, (1995).

The analyses of dynamic stress intensity factors for wedge loading experiments on modified compact tension specimens, designated WLCT, were then performed by the finite element method.
The causes of SCC have been thought to be composed of the three factors，namely stresses，materials and environments [1, 2].
To this end, the determination of the materials’ properties under high loading rates, the test method of applying high velocity loading to specimens during SCC growth and the theoretical analysis of the dynamic stress state near the crack tip under high loading rates have to be established first.
The chemical composition and static mechanical properties of SUS304 are listed in Tables 1 and 2.
Table 1 Chemical composition of SUS304 (wt%) C Si Mn P S Ni Cr ≦0.08 ≦1.00 ≦2.00 ≦0.045 ≦0.030 8.00〜10.50 18.00〜20.00 Table 2 Static mechanical properties of SUS304 s0.2 [MPa] Elongation f [%] Reduction of area y [%] 280 41.6 78.8 Fig. 1 Geometry and dimensions of 1/2T-WLCT specimen Experimental methods.

Research on the Properties of Collapsible Loess Reinforced by Cement 1,a Xiaoping Su 1School of Civil Engineering, Changchun Institute of Technology, Changchun 130012, China a E-mail: sxp5400@163.com Keywords: Collapsibility; Loess; Cement; Stadium; Strength Abstract.
The collapsibility of loess ground can directly affect the stability of the subgrade.
Basic Physical and Mechanical Properties.
The loess developed in different geomorphological units own different physicals and mechanicals properties.
The factors that affect the size of loess collapsibility in this area are mainly include temperature, pressure, water, matter and structure composition of loess, besides have some mater with the geomorphological units type of the loess .

For the transesterification process to be successful, there are affected by multiple factors: the nature of the feedstock composition, the alcohol to oil molar ratio, reaction time, temperature, nature, and amount of catalyst and alcohol [2, 4, 25].
Physicochemical properties of Biodiesel.
Most biofuels have different FFA profiles, which is a quality factor that influences the biofuel's oxidative stability and cold flow properties.
International Journal of Food Properties. 20(6) (2017) 1262-1269
Fuel properties of highly polyunsaturated fatty acid methyl esters: prediction of fuel properties of algal biodiesel., Energy Fuels. 26 (2012) 5265–5273

The curing characteristics, mechanical properties and morphology of these compounds were investigated and compared with those of the original compound.
A fill factor of 0.7 and constant rotor speed of 60 rpm were used.
Physical Properties.
The main reasons for the influence on the mechanical properties are inhomogeneities in the blend, migration of curatives and contaminations in the feedstock for the D-GTR.
If these problems are overcome, a considerable amount of D-GTR can be added to the original compound without significant loss in properties.

Problem such as wear and tear of PDC cutter are some of the main factors in drilling process failure affecting the rate of penetration (RoP).
There are several factors affecting rate of penetration but this research focus on rapid product development and changes to drill bit design for improvement in rate of penetration using reverse engineering approach.
Step of step for development of finite element analysis of PDC drill bit is as following: Define the properties of drill bit and formation in engineering data.
Table 2: Engineering Data for Analysis [9] Material Properties Limestone Density (2600 kg m^-3), Tensile ultimate strength (4.0e+06 Pa), Young’s Modulus (5.e+010 Pa), and Poisson’s Ratio (0.22).
Increasing number of cutters will decrease efficiency of cleaning hence affecting directly rate of penetration.

Drilling of such materials is a challenging task because of differential machining properties and checking the quality of hole is significantly a great attention.
Introduction Composite materials are used in industrial fields, such as aerospace, aircraft, automobile and sports, owing to their advantages in mechanical properties.
Smaga et al [9] found that feed rate is the most important factor which affects the surface roughness of the hole as well as fatigue life.
Lincoln et al conducted experiments in steel using HSS tool to drill the hole at flooded, MQL & dry lubrication levels which proved lubrication affects the hole quality [10].
[5] Sonbaty El, Khashaba U.A, Machaly T, Factors affecting the machinability of GFR/epoxy composites, Comp Structures, 63, pp.329-338,2004

Introduction Materials of an ultrafine-grained and nanometric structure exhibit mechanical properties that often surpass those of conventionally obtained materials having phases or grain structures on a micrometric scale.
Ultrafine-grained structures and nanostructures can be characterized as being unique owing to their physical and mechanical properties, such as: high low-temperature strength and/or high stress superplasticity and others [1, 3, 6, 7].
During applying high deformations, a strain anisotropy occurs in the material, which causes the anisotropy of mechanical properties.
Therefore, computation results are particularly affected by: the properties of material examined, friction conditions, and the kinetic and thermal parameters describing the plastic working process.
Kwapisz: The study of accumulation roll-bonding processes of aluminum and development of the model microstructure and mechanical properties, PhD dissertation, Czestochowa University of Technology, 2007 [4] M.

Quality improvement of the structure of thick sheets and plates, increasing the level of mechanical properties, minimization of energy and labor costs in the process of manufacturing could be achieved by using new methods of die forging and rolling with the implementation of severe alternating deformation.
In which connection, strain degree determines microstructure of metal and end-use properties of the workpiece essentially.
In which connection summary degree of strain is deficient and cast structural defect and nonuniformity of mechanical property appear in the plate [7].
Hot Forming of Steels and Product Properties. (2009) 165-174
Perig, Factors affecting the parameters of forging large forgings, Herald of the PNIPU.

Ti-6Al-4V has wide range of application in alloys due to its superior mechanical properties such as corrosion resistance, high tensile strength and toughness.
The variations of the parameters affecting the cutting quality concludes the surface integrity [14].
Table 2: Control factors of WEDM Parameter Unit Test I Test II Pulse-off time µs 1 5 Peak current Ampere 4 6 Wire tension N 6 16 Wire feed mm/min 4 12 Surface Characterization.
Copper increases the hardness of titanium and the existence of zinc has no effects on the mechanical properties.
Weaver, “Crystallography, Compositions, and Properties of White Layer by Wire Electrical Discharge Machining of Nitinol Shape Memory Alloy,” Mater.