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Accordingly, the risk factors affecting the external stress corrosion cracking of pipeline steel can be divided into three categories, among which the material risk factors mainly refer to the grade of steel, the environmental risk factors include soil, temperature, coating, cathodic potential etc., and the stress risk factors mainly include circumferential stress, axial stress and residual stress.
Therefore, cathode potential is the most important factor affecting the stress corrosion index, following by temperature and steel grade.
Key factors affecting corrosion of high rength pipeline steels in soli enviroments[C].
Progress in study of factors affecting stress corrosion cracking of pipeline ssteels[J].
Effect of mechanical factors on SCC initiation of pipeline steel[J].

Modeling Mechanical Properties of Multilayer Coatings TiAlN Vladimir I.
This work has revealed the effect of Ti/Al ratio on the mechanical properties of multilayer coatings.
Study and purposeful modeling of the mechanical properties of the described coatings are essential for their design due to their dependence on numerous factors.
The mechanical properties of TiN are as follows: Young's modulus – 259 [GPa], Poisson's ratio – 0.25 [6], while the mechanical properties of AlN are: Young's modulus – 273 [GPa], Poisson's ratio – 0.21 [7], .
Thus, the physical and mechanical properties of DLC coatings are inhomogeneously distributed over depth, which will naturally affect the residual stresses both in the coating and substrate, which certainly must be considered in the technology.

coalbed mechanical properties.
Roof mechanical properties and interfacial properties.
Mechanical properties of the roof is an important factor affecting the coal fracture.
Therefore, it’s important to study the rock mechanical properties of different rank coal and its impact on hydraulic fracture.
Natural fractures cleats, stress, and other factors can effect coal and rock mechanical properties of coal hydraulic fracturing rock fracture initiation, propagation mechanism. 2.

Meanwhile the key-factors affecting the hydraulic effective density and fluid bulk modulus were discussed.
Hydraulic fluid itself has great influence on the work of hydraulic components, for instance, fluid temperature,pressure, amount of air in fluid and so on can all affect fluid effective property, which is the main factor influencing the accuracy of hydraulic system dynamics analysis, modeling and simulation.
The temperature will change the amount of air inhaled and the air bubble volume as well as the gas compressibility, so it should also affect the fluid property [6-7].
Mathematic Modeling Generally, the temperature and pressure of hydraulic fluid will change when hydraulic system is working, which affect the density of hydraulic fluid; and the influences of the both factors coexist simultaneously.
The three-dimensional picture resulting from simulation program demonstrate the main factors which affect the fluid effective density change, which also provide engineers and technicians a more direct-viewing reference, thus laying a foundation for their designing accurate hydraulic systems model and carrying out dynamic analysis.

The coarse grain in the weld HAZ is one of the factors causing deterioration of mechanical properties and leading to weld cracks in weld thermo-cycle[2,3].
Results Mechanical Properties of the Base Materials and HAZ.
In fact, IAF is one of the factors of affecting the mechanical properties of the weld HAZ.
Other factors, for instance, prior austenite grain size, ferrite grain size and the conformation and distribution of martensite-austenite (M-A) phase can affect the mechanical properties of the weld HAZ also.
The simulated heat affected zone showed desired mechanical properties for the offshore steel used in ocean engineering construction.

In this experiment, based on the mechanical properties of grouting materials, Expert Design and response surface methodology (RSM) is used to optimize the mix proportion of grout materials.
Microstructure explains the mechanism of factors affecting performance indicators.
There are many factors affecting the solidification ratio, mainly due to water.
The addition of fly ash is especially important for grout mateials properties, the rational ratio of sand/fly ash result in the components combined closely, showing good mechanical properties.This study provides guidance for the application of different proportions of grouting projects.
Properties and performance of a high volume fly ash grout.

Abstract: Curing conditions is one of the most influential factors on mechanical properties and durability of concrete.
The performance of concrete is mainly manifested on its mechanical properties and durability, which significantly affected by raw material, mix proportion and curing conditions.
Compared with the mechanical properties of concrete, curing condition has a much critical influence on the durability of concrete.
Compared with the mechanical properties of concrete, curing condition has a much critical influence on the durability of concrete
Factors influencing concrete strength [J].Journal of American Concrete Insitute, 1951,47(6):417-432

It is affected not only by the style and design but also by the fabric properties.
ppearan and the intrinsic quality are the most important factors which manifest its value.
Fig. 2 Pareto of variances percent were explained by each principal component Comparing the weight sizes of each mechanical property of the principal components, five factors were found, which had the larger impact on the shape of men’s suits.
The results confirm that mechanical properties LT, 2HB, G, 2HG and 2HG5 are five important factors that determine men’s suits shape.
Bishop: Fabric: sensory and mechanical properties, Textile Progress, 1996, vol. 26, No. 1, p. 5 [5] Y.M.

Study on preparation and mechanical properties of magnesium phosphate cement Runqing Liu 1, a, Dingqiang Chen 1, b, Tianbo Hou 2, c 1 College of materials science and engineering, Shenyang Ligong University, Shenyang, 110159, China 2 College of materials science and engineering, Shenyang Jianzhu University, Shenyang, 110168, China aemail: 19712664@qq.com, bemail: 764817649@qq.com, cemail: 121054947@qq.com Keywords: MPC; Preparation; Mechanical properties; Adhesive properties Abstract.
The orthogonal experiment methods were utilized to prepare MPC, to study the effect of the factors and the corresponding content on the compressive strength of paste.
And the optimum mix of MPC is ultimately determined, and the mechanical properties and adhesive properties were analyzed.
The strength at 7d is above 90% of the strength at 28d, showing the characteristics of early strength and fast hardening. 2.4 The adhesive properties of MPC mortar The adhesive properties can be measured by the flexural strength of the repaired matrix.
Study on the preparation and properties of the combination of new chemical Magnesium phosphate cement [J].

And the 3 layer Untreated fabric composite have lower mechanical properties in the range of 12.2 MPa in tensile properties, 30.1 MPa in flexural Properties, and 18.2 joules impact properties than the others.
And the 4 layer T1 have lower mechanical properties in the range of 20.4 MPa in tensile properties, 53.7 MPa in flexural Properties, and 38.2 joules impact properties than the others.
And the 4 layers of T2 have lower mechanical properties in the range of 24 MPa in tensile properties, 56 MPa in flexural Properties, and 56 joules of impact properties than the others.
And the 4 layers of T3 have lower mechanical properties in the range of 25.2 MPa in tensile properties, 58 MPa in flexural Properties, and 50.2 joules of impact properties than the others.
It was also noted that the mechanical properties were affected based upon two factors as mentioned below. 1.