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And low temperature toughness, the low temperature resistance to brittle failure of the ability to affect the safety of the most important factor in service.
Therefore, LPG storage tanks at low temperature toughness of welded joints of tank safety as one of the important factors.
The chemical composition and mechanical properties of experimental steel.
And the mechanical properties is shown in Table 2.
For example, the cause of fracture, fracture properties, fracture mode, fracture mechanisms, fracture toughness, stress fracture process and crack propagation rate, etc.

Thus, it was possible, after a plan of experiments was designed, to realize a series of samples to study process parameters influence on some mechanical and metallurgical properties of the pieces obtained with this process.
Three factors were considered: powder flow rate (q), laser power (P) and scanning speed (v).
SS measures the amount of additional variation in the response that is explained by the factor, given that all the other factors are already in the model, and MS is simply SS divided by the degrees of freedom of the factor.
The analysis of microstructure is fundamental to understand mechanical properties obtainable by the selective deposition laser process.
ANOVA analysis (Table 5) showed that all factors affect results for micro-hardness.

Texture and Mechanical Properties of AZ31 Magnesium Alloy Sheets Processed by Symmetric/Asymmetric Combination Hot-Rolling J.
In particular, the poor formability of magnesium alloy sheets is one of the main factors hindering an industrial application of this material to various products.
The rolling reduction little affected texture at both rolling temperatures.
Tensile properties at room temperature.
These results are attributed to not only formation of shear texture but also existence of weakened basal texture. 0 45 90 0 100 200 20 30 40 Angle to rolling direction /degree Strength [MPa] Elongation 0.2% proof stress Angle to rolling direction [degree] Elongation [%] HR30% AHR30% HR30%+AHR20% Angle to rolling direction θ/degree WR85% HR30% Fig. 5 In-plane anisotropy of mechanical properties for various rolled sheets

Additionally, it is crucial to consider the initial pH of the bacterial culture, which should be within the range of 7 to 12 to avoid negatively affecting its properties [7].
Just as the bacterial concentration in cells/ml directly influences the mechanical properties of concrete, affecting its performance positively or negatively, this concentration also affects the thickness that can be repaired.
Now, the incorporation of calcium lactate will be used as a nutrient source for the bacteria and will affect the physical properties of the concrete.
Physical Properties of Fine Aggregate.
Castañeda Mena, “Effect of incorporation of cane bagasse ash on mechanical properties and carbon dioxide emissions of concrete containing waste glass”, Bol.

Event of a slope collapse, landslides and mobility, not only nearby residents caused casualties and property losses, but also cause serious environmental impact.
Through the study of the influence of the main factors for slope stability slope failure prevention, support reinforcement so as to provide a theoretical basis.
Factors affecting slope stability.
The main factors affecting slope stability mechanical parameters are slope, slope geometry and slope parameters of the external load.
Fr changes Feature point displacement method, Fig. 6 shows the number of feature points of the object displacement and reduction coefficient curve to the displacement curve of the more obvious turning point corresponding to the strength reduction factor as the study of the safety factor, this map pack reduction factor of close to 1.0, close to the known safety factor, indicating that damage occurred in the final slope.

The property of 0-3 piezoelectric ceramic/polymer composites depended on many factors, such as the dispersion of powder particles, the preparing method and the interface adhesion.
In 0-3 piezoelectric composite, ceramic particle size had effects on properties of composites[4-6].
Yang[7] studied the dielectric properties of high dielectric constant BT/EP composite, and the results showed that the dielectric properties of the composites depended on the size of BT particles at frequency of 1kHz to 1MHz.
Epoxy resin has good thermal resistance, high mechanical property, high adhesive strength, small shrinkage, excellent electrical insulation and chemical resistance.
Generally, the particle size affects more greatly on the dielectric property when the piezoelectric ceramic fraction is higher, furthermore the dispersion of particles in matrix also influences the dielectric property.

The shock stress wave however is a typical nonlinear wave, several hundreds of MPa in amplitude, much stronger than the thermoelastic stress wave, and has a strong impact on materials structure and properties far beyond the heat-affected zone.
Significant enhancements of mechanical and tribological properties have been observed, not only on the treated surface and sub-surface layer but also at depths of hundreds of micrometers.
Pogrebnjak et al. then studied extensively the structure and properties of the materials modified by this technique [3-7].
The temperature and stress fields are the main factors that determine the state and properties of the beam-affected zone.
According to the above simulation, the significant enhancements of the mechanical and tribological properties observed at depths of hundreds of micrometers are clearly due to the shock thermal stress impact.

The reached temperatures, around 400 °C, generate a high plastic deformation that allows to bind the scraps and obtain extruded products with good mechanical properties, without the need of further processing [5].
For this purpose, two factors were considered: the rotational speed, defined on four levels, and the descent speed, varying on three levels.
For this reason, in Table 4, a clear dependence of the temperature from both the rotational and descent speeds can be observed, whilst the final volume of the workpiece is not directly correlated to a change in either of the two considered factors.
Figure 4 shows the main effects plot for the maximum reached temperature: the relation between the factors and the response is clearly expressed from the graphic point of view.
Ardahani, Effect of Process Parameters on the Physical Properties of Wires Produced By Friction Extrusion Method, Int.

Investigation on PBL shear connector’s failure modes and their related factors is conducted.
Compared with other traditional forms of shear connector, it shows many excellent mechanical properties such as load carrying capacity, ductility and fatigue resistance.
Failure mode related factors of PBL shear connector Normal factor Strength of Concrete.
Concerned by all test researchers, it is an important factor which affects the mechanical properties of PBL shear connector.
Otherwise, the steel plate may yield or buckle while the rebar is still in elastic stage, and the mechanical properties of rebar are not fully utilized.

Despite the numerous studies that have been conducted on the properties of steels, interest in further improvement of mechanical properties has never waned.
These investigations have established that mechanical properties are affected by microconstituents like martensite [2], cooling pattern [3] and levels of C in steel [4].
A study by Kim and Lee [9] has confirmed that martensite morphology does affect the mechanical properties of steels.
Simmons, (Mechanical Properties of Isothermally Aged High-Nitrogen Stainless Steel), Metall.
Gladman, (An Investigation into Some Factors which Control the Strength of Carbon Steels), The Iron and Steel Institute Special report no.81, 11pp, 1963