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The mechanical factors of swelling soft rock There are internal and external mechanical causes for rock swelling.
The water content of natural swelling rock is one of the important factors in swelling potential.
The cemented status of mudstone is one of the key factors of expansion potential and development degree.
The worse the gelling property is, the stronger the swelling property is.
Therefore, there are two main factors in criterion: clay mineral composition and hydrophilicity of clay mineral.

Metal foam has a unique combination of properties such as air and water permeability, impact energy absorption capacity, unusual acoustic properties, low thermal conductivity, good electrical insulating properties and high stiffness with very low specific weight [2].
According to German, higher temperatures induce sintering shrinkage, leading to less dimensional precision, but higher properties [8].
These defects would affect the mechanical strength of the strut.
The rheological properties of the slurry play an important role in the impregnation process.
The particle size and shape of the raw powder, the type and content of the binder, the ratio of solid and liquid content are among of the factors that affect the rheological properties of the slurry [3].

Factors Influencing the MTC and its realization methods have always been of concern to many researchers.
Afterwards, they used molecular dynamics simulation method to study the MTC and the influencing factors.
Yuan and his colleagues using diamond cutting tool to machine aluminum alloy material suggest that the MTC has a relationship with edge radius, material properties, the cutting process and so on.
It pointed out that the MTC is related to the actual cutting parameters and changes with edge radius, the cutting parameters, and the material properties.
There are many factors affecting surface roughness, such as specific processing parameters, surface residual height, the DMTC, elastic recovery, different phrases of burr height, and so on.

Introduction Silicon carbide are important structure ceramics because of their excellent mechanical properties, such as, high hardness, high strength at high temperatures as well creep and oxidation resistance.
Reaction temperature, carbon addition, holding time and argon flow rate were chosen as four investigated factors.
The orthogonal experiment investigated the effect of three levels about four factors on products.
In addition, the molding pressure of body also affected the content of SiC.
The FexSiy can decrease antiwear and creep-resistant properties [12].

The average grains size and shape factor of solid grains were affected by melting mechanism and grain growth mechanism.
The components fabricated by casting methods obtain many defects such as segregation and porosity, which reduces their mechanical properties [10].
Tin, Nickel-Based Superalloys for Advanced Turbine Engines: Chemistry, Microstructure and Properties, J.
Liu, Microstructure evolution and mechanical properties of ZK60 magnesium alloy produced by SSTT and RAP route in semi-solid state, Trans.
Chang, Research on microstructure and mechanical properties of a new α + Ti2Cu alloy after semi-solid deformation, Mater.

However, sometimes these angles are distanced and faced in order to improve their mechanical characteristics about the axis of symmetry.
In the past, their design was made in the same way as the double angles arranged in a T shape, that is, considering the limit states of flexural buckling and buckling by flexural-torsional, but ignoring the properties of the connectors and their effect on the modified slenderness ratio, as well as the fact that in this case the warping constant is not negligible.
This new methodology was based on the criteria proposed by Garza et al. (2005) [2] and [3] and includes a term for the modified slenderness as a function of the properties of the connector.
In principle, the torsional buckling contemplates the torsional property (torsional constant J) of the main profiles, it excludes the contribution of the connector profiles.
It is necessary to consider the contribution of the connector element to the torsional properties of the cross-sectional.

In present work, the key Influence factors on solidus temperature have been discussed, and it can be calculated by a mathematical model for solute microsegregation during the solidification.
The factors to the model precision contain the model arithmetic and thermal physical parameters.
Influence factors for Solidus Temperature.
Table 3 Thermal properties of steels Steel Liquidus Temperature,℃ Solidus Temperature,℃ Equilibrium Non-Equilibrium 0.20C 1513.0 1485.0 1445.0 0.45C 1494.0 1443.0 1397.0 0.71C 1464.4 1383.0 1317.0 Comparison of solidification process.
(1)The carbon content and cooling rate are key Influence factors on solidus temperature, However, the experiment is not enough presently.

Drilling diameter and space between drillings are main factors influencing pressure relief effect.
These phenomena are a direct threat to the safety of construction workers and equipment and the progress of the project is affected.
The results show that there exit areas of high stress gradient in roadway gills where the factors of stress concentration and the incidence rate of rock burst is high.
Considering the heterogeneity of rock physical properties and the complexity of stress distribution in rock mass, the stress concentration factor in the local range is certainly much larger than 1.36.
(3) The factors of effect on pressure relief are mainly the hole diameter and the drilling spacing.

With the guarantee of the model parameters and the properties of particles under the same condition, Frequency is 30Hz, amplitude is 0.43mm, and the filling time is set at 5s.
Table 5 Table of factors and levels Level Factor DOF A Vibration frequency B(Hz) Amplitude C(mm) 1 Z 20 0.28 2 XY 30 0.43 3 XYZ 40 0.57 The simulation process of solid and liquid flow is shown in Fig. 8.
Influence of vibration on the solidification behaviour and tensile properties of an Al-18wt%Si alloy[J].
Effect of mechanical vibration on Microstructure and mechanical properties of lost foam casting magnesium alloy[J].
Study on Microstructure and properties of aluminum (magnesium) alloy lost foam casting under vibration pressure.Huazhong University of Science and Technology( 2010)

This is due to the special properties of materials with shape memory.
Conclusion The analysis showed that the main factors that determine the reliability of the products are: adhesion, wear-resistance, micro-hardness, fatigue strength.
The structure, phase transformations and properties.
Study tribological properties of NiTi.
Mechanical and Tribological Properties of the Composition “Steel - nanostructured Surface Layer of a Material with Shape Memory Effect Based TiNiCu”.