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The result showed that retardation effect caused by overload would be affected significantly by stress rations.
The mechanical properties of the test material, TA2, are given in Tables 1.
This material is widely used in China to construct pressure vessels because it has good processing properties and mechanical properties.
TABLE1 MECHANICAL PROPERTIES OF THE MATERIAL Mechanical properties Yield strength[MPa] strengsststrengtstrength S Ultimate strength[MPa] MPa Elongation 417 578 64 In order to investigate the effects of the overload on the crack propagation, specimens are divided into two groups.
In this study, as the notched crack is inclined, both Mode I stress intensity factor and Mode II stress intensity factor are a function of the angle as shown in Fig. 1.

Properties of Ni-Cu bulk alloy prepared by spark plasma sintering technique L.X.
Introduction Nanomaterials, especially bulk nanocrystals have drawn considerable scientific attention because of their attractive properties in mechanical, physical and chemical fields[1-3].
The technique of MA (mechanical alloying) [7] was widely adopted to obtain enough large nanocrystals, but the low-purity production undoubtedly affected the properties of the nanocrystals.
The microstructure and mechanical properties of the as-prepared bulk alloys were investigated, and the formation mechanism of the as-prepared bulk alloy was discussed.
The tensile strength of the specimens sintered at 600˚C are the highest among the sintered specimens, but their density is not like that, which indicates that the strength of the sintered specimens exists other influence factors besides density.

The results shown that surface effect has a significant effect on the tensile mechanical properties of single crystalline Cu nano-rod.
At the nanoscale, Molecular Dynamics (MD) is a significant method of computer simulation and useful tool to investigate the mechanical properties and deformation mechanism of nano-rod.
MD simulation method was employed by Liang haiyi and Xu zhou etc. to explore the mechanical behavior of nano-wire, as well as strain rate effect and size effect. [1, 2, 3,] The mechanical properties of single crystalline Cu nano-rod with different crystalline were discussed by Lu hongquan etc. [4] The effect of crystal to the mechanical properties of single crystalline Cu nano-rod was revealed.
Bai qingshun investigate the mechanical properties of varied single crystalline Cu nano-rod. [5] The results shown that nano-rod possess significant size effect.
Summarize the previous research results, the mechanical properties of nano-rod influenced by various factors.

So it is very important to study on the cold flow properties of WCME and find the way to improve its cold flow properties.
In the last decades, the awareness of the factors influencing the cold flow properties and its inherent laws encourages many researchers to explore approaches to improve the cold flow properties of biodiesel.
Clod Flow Properties.
Improvements of Cold Flow Properties.
Adding small amount CFI in blending oils hardly affected the viscosities, and it did little influence on the flow properties at low temperature.

Its properties are rigid and flexible due to its thermoplastic and elastomeric segments.
The addition of micrometric EVA demonstrated a better waterproofness and has a lesser effect on the mortar's mechanical properties than the millimetric EVA.
Thermal Properties.
Thermal Properties.
The decrease in mechanical properties is caused by the characteristics of EVA, a soft and malleable material, so it is weaker than the conventional aggregates and thus promotes damage propagation.

Methods of tribo-system health state recognition and wear residual lifetime prediction are proposed based on wear failure mechanism, many uncertain influence factors also being taken into consideration.
Tribo-system state properties should include all parameters that can be inspected directly or indirectly through instruments or facilities during friction or wear.
Tribo-system states include component surface wear state and lubricate media state [4], and are described through extrinsic dominance parameters which are also called state properties.
They should include such parameters as load P, velocity U, temperature T, time t, friction force F, friction factor f, wear rate w, and so on.
There are some excellent methods in traditional statistical technology that can be used to collect, classify and analysis the datum affected by stochastic factors.

Slope instability of open pit mine will affect on personal and mining work, thus affecting mining economy.
The southern slope stability of Jilinguole 2 open-pit coal is influenced by various factors such as slope gradient (slope Angle, slope height, slope shape ,etc) and the physical and configuration of mechanical properties about rock ,soil and groundwater which are located in the slope .The stability of open-pit coal mine slope depends on the importance of problem that open-pit coal mine slope design and construction scheme.
Fig. 1 Simplified rendering of the mine stope Fig.2 Entity model that after improved grid Fig.3 FLAC3D model Three-dimension analysis of irregular slope deformation in jilinguole 2mine This physical and mechanical parameters selection of this open-pit coal mine rock is shown in table 1 Tab 1 Physical and mechanical parameters of rock Stratigraphic Characteristics Bulk modulus K[Mpa] Shear modulus G[Mpa] Density ρ[g/cm] internal friction angle φ[°] Cohesion C[Kpa] Sand 5.53 0.96 1.93 15.5 0 Clay 7.6 1.7 1.93 15.5 26.3 Gravel 8.4 2.8 1.95 26.5 280 Coalseam 4.86 8.65 1.32 39.64 2270 Mudstone 1.42 0.69 1.32 8.79 27.65 Regularity analysis of displacement field Research on the overall displacement distribution of Jilinguole 2 mine three-dimensional model .Look at the displacement cloud picture of the model including the overall and vertical direction is shown in figure 4 and figure 5.By these two parts of the cloud picture analyze the mechanics characteristics of three-dimensional
Edge (slip) slop discussion of safety factor in engineering design [J].

Combination of these factors lead to form a different behaviour of coated metal.
A cross-cut area significantly greater than 65% is affected.
A cross-cut area not significantly greater than 5% is affected.
Preparation and Properties of Polyurethane Coatings Based on Acrylic Polyols and Trimer of isophorone Diisocynate, Prog. in Organics Coatings. 68 (2010) 307-312
Abidin, The Effect of PMMA on physical properties of dammar for Coating Paint Application, Journal of Pigment and Resin Technology, 42(2) (2013) 137-145

In general, the uniform distribution of reinforcement particles inside the matrix,good wettability between the particle and matrix, and suitable bonding strength of the reinforcement /matrix interface are thought to be the major factors controlling the properties of this kind of materials[2-4].To overcome these problems, in-situ technique has been used to fabricate the Al-MMCs,the reinforcements synthesized by in situ chemical reactions during sintering are finer in size,thermodynamically stable and distributed uniformly[5].
Fig.2 Microstructure of green samples and Al-Si-Al2O3 composites Mechanical properties.
It can be found that the structural homogenity of samples A2 and B2 are better than A1 and B1.So A2 and B2 are chosen to test their mechanical properties.Table 3 gives the values of the density, Vicker hardness, tensile strength(σb) and elongation(δ) for samples A2 and B2.
Further studies of other properties to Al-Si-Al2O3 composites are in progress.
Table 3 Density and mechanical properties of the composites Sample No.

In this paper, influence of processing parameters and powder properties on final sintered component properties are discussed.
For effective press and sintering of metal powders in commercial scale there are a number of factors that need to be considered.
To start with, flow properties of the powder are important.
Physical properties are presented in Table 1.
Physical properties of the powder.