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A recent review was conducted by Barkoula and Karger-Kocsis [1] on various parameters and properties that can affect the erosion rate of polymer composites.
The material properties are shown in Table 1.
Table 2 shows the experimental factors for air jet erosion test and Fig.3 shows the experimental set up of air jet erosion test.
Günay, Residual mechanical properties of carbon/polyphenylene sulphide composites after solid particle erosion, Mater.
Hergenrother, Physical and mechanical properties of high-performance thermoplastic polymers and their composites, in: L.A.

The key factors affect the nucleation rate are not only effective titanium content in the steel, cooling rate and temperature, but also the size, distribution and quantity of the second phase particles existing in the steel.
The results are important for controlling the microstructure and properties of the steels.
Therefore mechanical property of the steel can be improved effectively.
The heterogeneous nucleation and epitaxial growth of the TiC formation could be important factors for controlling of mechanical properties of the steels.

It’s the key point to determine the parts layer and parameters layer, and affected by their feedback at the same time, in this way to further improve their structure.
Parameter layer: Describing the final overall properties of the design process model of the product, its main modeling objects are the parameters which can reflect the performance of the product’s process model.
P={pt1,pt2,pt3,pt4,pt5,pt6……} represent the sets of each components included in the component level Pt={aa1,aa2,aa3,aa4,aa5,aa6……} represent the sets of the properties of each part.
(In Chinese) [4] DARLINGTON MJ，CULLEY SJ．A Model of Factors Influencing the Design Requirement[J]．Design Studies，2004，25(4): 329-350
Conceptual design of mechanical system[M].

During the last decades, the academe popularly considers the key factors affecting on ratcheting behavior as follows: stress amplitude σa, mean stress σm, stress rates dσ/dN, cyclic numbers N, temperature θ, stress history χ, temperature history ξ, etc.
The General mechanical properties of two materials are listed in Tab.1.
General mechanical properties of the materials material Yield Strength σ0.2[MPa] Tensile strength σb[MPa] Youngs Modulus E [GPa] Ratio of elongation δ5 [%] Percentage reduction of area Ψ [%] 304 230 660 195 52 62 1Cr18Ni9Ti 231 700 195 53 62 All uniaxial cyclic loadings on specimens were performed by two MTS machines: MTS810 (100KN) and MTS809 (25KN) with controlling by TestStar II controller and MTS Test-Ware/SX application.
The results show that the effect of mean stress on SR strain is small within area of mean stress:20~120MPa, hence the peak σp is unitary factor of stress to control the ratcheting deformation as σ Τ m is larger than about 20 MPa or σ T m and σ T p are dualistic factors to act on SR strain as σ Τ m is small.
From the experimental properties discussed above and without considering the influence of stress ratio, ratcheting strain evolution equation Eq.1 can be simplified as: ),,,( ξθσε Nf rr = .

Effect of measurement temperature on electroluminescence properties of PET Films Jiaqi Lin1, a, Minghui Xia1,b, Junhui Shi1,c, Jing Leng1,d, Qingguo Chi1,e 1 School of Applied Science, Harbin University of Science and Technology, Harbin, 150080, China aljqi405@163.com, bcarbon111@163.com, csjh-004@163.com, dlengjinghappy@126.com, eqgchi@163.com Keywords: Temperature; PET; Electroluminescence; Hot electron Abstract.
Introduction Poly (ethylene terephthalate)-PET is one of the most important composite material at present, it not only exhibits excellent wear resistance, heat resistance and chemical resistance, but also has high electrical insulation and good mechanical intensity.
The electrical aging and breakdown of poly involve many factors, such as the impurities, structure, chemical defects and change of temperature, etc[2].
In this experiment, the hot electron theory can explain why the EL intensity varies with temperature, with the temperature increasing, it could increase the probability of formation of hot electrons, thus affecting the EL intensity, but little change in the pre-breakdown field indicating that The formation of hot electron is not the main reason which cause aging and breakdown of PET films.

Considering trees' mechanical properties, using structure optimization techniques enhances trees' geometrical arrangement [3].
This will also address the fact that static load and different branching angles will affect the Volume of failed material in branches and the tree-shaped structure stem. 2.
The material properties were that of ASTM A36 hot-rolled steel.
Various factors, such as external moment, subdivision element angle (θ), and failure volume (Vdj) at a junction (connecting stem and branches), determine whether the structure will buckle or fail at the connecting joint.
However, many unexplored areas, such as multilayer multi-material systems, high-fidelity modeling methodologies, and incorporating nonlinear material properties, need more investigation.

In earlier studies, starch matrix thickness increased up to 2.5mm, showed improved mechanical properties, promote water retention causes enough time for the molecules to relax and orient [1].
To reach starch concentration, values were multiplied with factor 0.9.
Addition of lignin have been associated with reducing water uptake [5] and increasing the mechanical properties [6] in the lignin treated starch matrix.
Thuvander, "Influence of thickness on the mechanical properties for starch films," Carbohydrate Polymers, vol. 56, p. 499, 7/15 2004
Kayaman-Apohan, "Preparation and drug release properties of lignin-starch biodegradable films," Starch - Stärke, vol. 64, pp. 399-407, 2012

This paper puts forward and analyses the mechanical properties and forming mechanism of the layer.
Introduction The casting surface is required with some special properties in many cases, such as wear-resistance, corrosion-resistance, etc.
This way may change microstructures of the casting surface and improve its mechanical properties due to interaction of the molten metal and ceramic particles.
As further investigation on material preparation and mechanical properties, it was used to research and develop composite materials of the casting surface [1-3].
Carbon content of the high boron steel casting also is another important element which determines its mechanical properties.

In this study, various applications, processes, and resulting properties of friction stir welds have been explored.
Second, tensile properties and fatigue crack growth mechanisms in friction stir welded 6061-T6 alloys were investigated.
This is an important consideration for welding alloys in an age-hardened state as degradation of peak mechanical properties is partially a function of maximum weld temperature [1-3].
The typical FSW zones are shown in Fig. 1(a): the central weld nugget characterized by a fine dynamically recrystallized grain structure (DXZ), the thermo-mechanically affected zone (TMAZ, characteristic to FSW), and the heat affected zone (HAZ).
After the ACR closure correction, there are still differences between the thresholds of the base and FSW materials indicating that there are other factors besides closure, such as the microhardness and grain size of the material, that have an effect on the threshold behavior.

Studies say the factors influencing the formwork pressure are mix design, rate of placement, consistency, temperature, vibration and form dimension.
The only way is to formulate an empirical equation from the data obtained of experimental procedure or from field data or to formulate a theoretical model using the mechanical as well as rheological properties of SCC.
The maximum pressure distribution and the depth on which it is acting will be depending on those factors.
From the literature review and the results of the experiments, several inferences have been drawn: · Self compacting concrete is a complex material whose properties depend on different factors such as characteristics of cement, design mix, consistency of mix etc.
· The factors depending on the lateral pressure developed in SCC include both extrinsic and intrinsic properties of material which may be temperature, rate of placement, dimensions of form etc