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The model allows us to study the raking process in detail and how the properties of the powder particles (e.g. size, shape, density, interaction properties) and process parameters (e.g. height of powder layer, rake geometry, rake speed) affect the properties of the bed after raking.
Microstructure Model The mechanical properties of an alloy, such as strength, ductility and fracture toughness, are directly affected by its microstructure.
Therefore an ability to predict and control the microstructure during an AM process is important to achieve the desired mechanical properties in the final product.
These complicating factors mean that it is not conceivable that the sub-models can be combined on a large computational platform and run together.
Cleary, The Packing Properties of Superellipsoids, Europhysics Letters, 89 (2010) 34002

This process has many advantages for die casting process such as reducing the gas porosity and shrinkage porosity in work piece, improving mechanical properties.
The surface roughness is one of indexes of product quality because it has influence on the mechanical properties for instance fatigue behavior, corrosion resistance, creeps life, etc.
Used the factorial experimental design to investigate the main effect of surface roughness in face milling process and found that the factors have effect on surface roughness were feed rate and spindle speed while the depth of cut did not affect surface roughness for semi-solid 2024, 6061, 7075 aluminum alloys [5] - [7].
Two level factorial experimental design is very useful to filter out the factor which do not have effect on the result.
The increasing of the spindle speed and depth of cut affected surface roughness declined.

The pointed out that the macro-mechanical properties of coarse-grained soil is complex, soil particle composition, geometric arrangement of soil particles and forces between particles is the fundamental factors to determine the macroscopic mechanical properties, which results the macroscopic mechanical properties of coarse-grained soil to show strong dispersion characteristics.
When the dumping site met the effect of external forces or other external factors, the slope might become unstability. so it must take appropriate engineering measures to reduce the risk.
From the safety factors, we could know that Xiyuanlin 413 step dumping site was the temporary stable stage at present.
Because the safety factors surplus was not much., the slope might become unstability when the dumping site met the effect of external forces or other external factors.
Experimental study on mechanical behaviour of granular material[J].

This reduction in density may be linked to several factors.
The improvement in mechanical properties can be attributed to the presence of CaCO3, a stiff and rigid material.
Nielsen, Mechanical Properties of Polymers and Composites, Second Edition.
Thonglor, “Thermal and Mechanical Properties of Modified CaCO3 /PP Nanocomposites,” vol. 6, no. 8, 2012
Fikri, “The effect of CaCO 3 filler component on mechanical properties of polypropylene,” IOP Conf.

But for the issues related to factors affecting the bearing capacity and strengthening the bearing capacity of the specimen calculation did not mention.
On the basis of existing researches, based on simulated by ANSYS software to analyze the stress changes after the reinforcement of the specimen, and the factors that affect the ultimate bearing capacity of the specimen.
b) Select isotropic elastic material properties, including modulus and Poisson's ratio of the material.
Fig.a von mises stress cloud of original concrete Fig.d von mises stress cloud of RG2 inner pipe Fig.b von mises stress cloud of original pipe Fig.e von mises stress cloud of RG2 outer concrete Fig.c von mises stress cloud of RG2 inner concrete Fig.f von mises stress cloud of RG2 outer pipe Fig.3 Stress-strain cloud of specimens Ultimate bearing capacity analysis Tab.2 The ultimate bearing capacity of the finite element simulation kN Number ZG0 RG1 RG2 RG3 RG4 RG5 ANSYS Value of simulation 1256 3250 4239 4832 4345 4380 Reinforced value / unreinforced value — 2.6 3.4 3.8 3.5 3.5 Fig.4 The effect factors of the pairs of concrete filled steel tubular bearing capacity Through the ANSYS simulation results show that: (1)Bearing capacity of reinforced specimens (RG2, RG4, RG5) than the original column (ZG0) ultimate bearing capacity(1256kN) has greatly improved (respectively
(2) After Strengthened the double concrete filled steel tube columns with good mechanical properties.

The article discusses the experimental substantiation of predicting the operational properties of elastic elements by the acoustic emission (AE) method, as well as the use of the non-destructive method of acoustic emission as an element of digital certification of critical mechanical and instrument engineering products.
Introduction Violation of the heat treatment regimes can lead to the formation of an inhomogeneous microstructure of the materials of elastic elements, which affects the elastic properties and operational properties.
Conclusion A technique has been developed for assessing the operational properties at the stage of preparing elastic elements for operation based on the registration and processing of AE signals.
The method of acoustic emission makes it possible to control and predict the operational properties of elastic elements at a given technological load, and by changing the intensity of AE signals, to reveal the presence and development of microcracks, a tendency to relaxation.
Kuznetsov, Influence of Aerothermoacoustic Treatment on the Structure and the Properties of a TS6 Titanium Alloy, Rus.

The key technology of diamond tool ultrasonic vibration cutting ferrous metals is presented in this paper and the influence of the processing environment of the presence of carbon atoms protective gas, the presence of carbon particles coolant of temperature control technology, ultrasonic vibration, workpiece material surface pretreatment or without on diamond tool wear rate and workpiece surface quality, the relationship between diamond tool wear rate, the workpiece surface quality and the ultrasonic vibration technology, processing environment, workpiece material surface pretreatment technology factors is given.
Ed.Paul of America Stockton school and C.Evans et al. from USA National Institute of standards and technology put out that diamond tool wear is divided into the mechanical friction wear and chemical reaction wear[4], graphitization of diamond, carbon atom diffusion, oxide and carbide are chemical wear, the unpaired d electrons in the workpiece material atoms directly influence diamond tool chemical wear.
The experimental results show that carbon atoms in the atmosphere participate in chemical reactions instead of carbon atoms in diamond tools, and the concentration of carbon atom in the atmosphere directly affect the diamond tool wear rate, and that is proportional to the carbon atom concentration in the atmosphere.
E.brinksmeier et al. from University of Bremen in Germany propose the nitriding process, and take nitriding preprocessing on steel workpiece surface layer, improve the workpiece material properties and diamond tool cutting performance, inhibiting the tool wear[12].
Diamond has high hardness, good physical and chemical property, so that the proportion of mechanical wear on the cutting process is small.

In addition to the effects of the complex material that lead to the corrosion in seawater, the corrosion is also affected by the ultraviolet radiation, temperature, wave erosion and other factors like so on[2].
Evaluation of material properties of filled cement mortar.Under the condition of cycle of freezing and thawing between -15℃ ~ 15℃ and alternation of drying and wetting, 17 kinds of filled cement mortar and the performance of sacrificial anode in the filling materials were tested.
The data can be used for analyzing the relationship of cathodic protection parameters of the splash zone, the surface state of steel, the integrity and the environmental factors.
(Results shown in Fig. 3 and Fig. 5) Fig. 2 Schematic diagram of simulation and monitoring probe arrangement Fig. 3 ECI-1 monitoring results: the variation of environmental factors and state parameters with time.
J., Influence of the level of cathodic protection on the corrosion fatigue properties of high-strength welded joints.

Analysis of the influencing factors and initial determination method for important parameters of secondary cooling water, including specific water, water ratio in each secondary cooling zoon and the amount of water in outer arc, inner arc and sider at one secondary cooling zoon.
There are four main factors affect the specific water, steel grade cooling properties, sectional shape and size, caster structure and casting speed. 2.1 Steel grade Each steel grade has its own cooling properties, but it is impossible to develop a cooling system for each steel grade.
Generally, steel grades are divided to several groups according to the steel high-temperature physical properties and the steel chemical compositions, and then develop a cooling system for each group of steels.
Detailed descript the influence of influencing factors for specific water, Including steel grade cooling properties, sectional shape and size, caster structure and casting speed.
Thermo-mechanical simulation and parameters optimization for beam blank continuous casting[J].

As is known to all, SPT is affected by many factors, such as machines and equipments, ways of drop hammer, and test methods etc, which can through standardized method to achieve unification to reduce the impact on the test results.
Whereas, the influence of other factors cannot be controlled artificially, such as rod length, rod lateral friction, groundwater and overburden pressure etc.
Energy reduction ratio was only 5.4% when the rod length changed from 15m to 100m, whose impact on the value of N far less than other construction factors, such as stress states of borehole bottom and drilling technology.
Whereas, the limitation of rod length in SPT has surpassed 21m and the longest has surpassed more than 100m in actual engineering，with the value of N still can reflect the mechanical properties of soil, so the method of rod length modification has naturally met the challenge.
Because SPT is affected by many factors, with any kind of theory has their limitation, so it is difficult to strictly conform to the actual engineering situation.