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The welding　heat from ESW, for example, is considered one of the main factors reducing steel toughness and causing the connections to fracture.
The lack of toughness in base material and the heat from welding processes, for example electroslag welding (ESW), are considered the two main factors causing the connections to fracture.
Material Properties A572 steel is high strength low alloy steel used in a variety of structural applications.
Grain sizes of base material are one of important factors affecting the mechanical properties.
In general, rolling processes reduce plate thickness and grain sizes, improving the mechanical properties such as hardness, toughness and so on.

With FA (factor analysis), the features of the contamination can be represented by two feature factors, large size particles factor and small size particles factor.
Ignore this process not only can result in equipment failure, and will seriously affect the service life of equipment.
These four sizes decide the property of the common factor 1, which hence could be explained as the large particle factor with a contribution rate 45.4%.
There are just some different from the contributions and the influence on the system of two factors.
Chinese Journal of Mechanical Engineering, Vol. 39 (2003) No.9, p.58

Introduction With the rapid development of high-grade highways in China, it becomes increasingly important and urgent to study the engineering properties about special soil.
These factors would affect the compressibility of the sulfuric acid saline soil and make it has its own characteristics.
By analyzing of the regression equation (1) and the significant factors, namely, the results from F - test show that the regression equation is significant at α = 0.01 level and the selection of a mathematical model is matched with the actual situation.
The level of the factors is seen in Table 1 by regression orthogonal design requirements.
Table1 Level of the Factors Factor Moisture content（％） Salt content（％） Initial dry density（g/cm3） temperature（℃） mark X1 X2 X3 X4 Reference level（0） 15 1.65 1.45 5 Spacing interval（Δ） 7.07 0.95 0.32 14.14 Upper level（＋） 22.07 2.60 1.77 19.14 Lower level（－） 7.93 0.7 1.13 -9.14 Upper asterisk arm（＋1.414） 25 3 1.9 25 Lower asterisk arm（－1.414） 5 0.3 1.0 -15 Each of these factors (variables) is divided by five levels and need 625 samples.

It is necessary to propose a reasonable explanation about how precipitates affect the mechanical properties of 7075 aluminum alloy FSW joint.
Therefore, the categories of precipitated phases may be the main factor affecting the microhardness of the FSW joint.
Factors affecting microhardness include grain size, strain hardening and the size of the precipitated phase.
Mechanical properties evolution during post-welding-heat treatments of double-lap Friction Stir Welded joints [J].
Microstructure and mechanical properties of friction stir welded AA7075-T651 aluminum alloy thick plates [J].

Whether the construction machinery remanufacturing project can be carried out smoothly and how effective it is, depends largely on the reasonableness of the equipment design, the structure, material properties, and other characteristics.
The green modular design methods that oriented construction machinery is that the combination of green design and modular design is flexibility applied to the design stage of the remanufacturing to make the design meeting the remanufacturing indicators and requirements at the same time, such as the functional properties of the equipment, the transportability, removable, easy to repair and upgrade, easy assembly and environmental attributes.
Green modular design that oriented remanufacturing engineering is an integrated design process that requires analyzing comprehensively of a variety of factors affecting the green degree and the module degree such as economic, environmental, materials and assembly, considering environment harmonization of the equipment, easy disassembly, easy classification, easy to repair and upgrade, easy assemblability and easy transportability.
There are five factors affecting the degree of the equipment modularity are: (1) structure interaction; (2) force interaction; (3) signal interactive; (4) energy interaction; (5) material interaction.
Journal of Mechanical Engineering,2013.39(11):149-154

The Effect of Particle Size on the Electromechanical Properties of PZT/PVDF X.F.
However, the high density and mechanical stiffness limited their applications.
Much attention has been paid to many aspects that affect the properties of the composites.
Then all of the powders have the same physical properties, such as particle porosity and especially crystalline size etc.
After poling, the composites were aged for at least 24h prior to measuring the dielectric and piezoelectric properties.

Mechanical Properties The flux has been manufactured in accordance with the ingredient of No.8.
The tests of mechanical properties have been conducted according to ASTM standards.
The mechanical properties satisfied the Specifications for West to East Pipeline Project of China.
(2) Mechanical tests show that the toughness and other mechanical properties of SAW joints satisfy the technical specifications of West to East Pipeline Project in China.
A reappraisal of the relationship between flux basicity and mechanical properties in submerged-arc welding.

The properties studied include Inter-laminar Shear Stress (ILSS), Dynamic Mechanical Properties (DMA) such as storage modulus, loss modulus and loss factor using ASTM standards.
Temperature variations could lead to noticeable changes in the polymeric properties and fibre/matrix interface leading to degradation of mechanical properties.
Dynamic mechanical behaviour like storage modulus of the three panels, loss modulus properties, and loss factor are measured using DMA Q800 test machine.
The properties of FRP composite materials determined by different factors such as, fibre arrangement, type of fibre and fibre-matrix bonding.
Dynamic mechanical analysis provides information on the viscoelastic properties of composites.

It is applied in various fields due to its versatile thermophysical, mechanical and optical properties.
The results obtained show that a correlation between the mechanical and thermophysical properties and the quenching temperature has been established.
In addition, it was found that while the quenching process above Tg did not affect the thermophysical properties, quenching below Tg affected it very markedly in the temperature range corresponding to the secondary relaxation mode.
McQuarrie, Thermal Conductivity: I, Concepts of Measurement and Factors Affecting Thermal Conductivity of Ceramic Materials, Journal of the American Ceramic Society. 37 (1954) 67-72. https:// doi.org/10.1111/j.1551-2916.1954.tb20100.x. [5] R.
Haddaoui, Mechanical and thermal properties of polycarbonate, part 1: Influence of free quenching.

In the mechanical structure supporting stage to achieve the rigid support, the piston rod of the hydraulic cylinder is not affected by force.
Supporting Stage of the Mechanical Structure and Forces.
To determine the safety factor, various factors should generally be considered; the factors include the material, the bearer mode, accuracy while simplifying the model, working conditions and its importance and so on.
The relatively simple algorithm is to take the product of the coefficient of three parts; the safety factor can be calculated through the formulation below: [4] (2) Where n1 is material considered reliable (the uniformity of the mechanical properties, internal defects, etc.); forging or rolling parts of manufactured parts, n1 = 1.05 ~ 1.10.
The rigid support structure is checked by finite element analysis software ANSYS, the mechanical properties meet the requirements.