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Mechanical Properties.
Results and Discussion Mechanical Properties.
Thus, it can be concluded that dispersion of nanoclays is an important factor that can directly affect the mechanical properties of the developed bio-nanocomposite films.
Concentration affected dispersibility of the nanoclays and is a critical factor that determined the mechanical and barrier performances of the films.
Varlet, Mechanical properties of clay-reinforced polyamide, J.

This paper analyzed the steel reinforced concrete members’ Torsion properties under combined force by method of the finite element analysis.
Considering the main affecting factors like compression ratio to reveal the SRC structures under the force of monotonic torque’s characteristics of the damage and capacity, etc.
When analysis concrete strength 's influence on reinforced concrete component limit supporting capacity ,ensure conditions ,such as axial compression ratio, the concrete strength, the component section size, Stirrup spacing and the vertical steel ratio and other factors unchanged, analysis the SRC through changing concretes strength rank to get component's ultimate torque.
To analysis with steel size as influencing factor, SRC-2, SRC-7, SRC-8 three specimen sizes are taken to be 100 × 100 × 6 × 8,150 × 100 × 6 × 9,200 × 100 × 5.5 × 8, axial compression ratio, concrete strength, reinforcement ratio and other factors remain unchanged.
Therefore, by increasing the rate of stirrup component can increase ductility, improve the steel reinforced concrete columns' seismic performance, and also can achieve the purpose of enhancing the mechanical properties.

The surface roughness is one of the most important factor affecting coating performance of the WPCs.
The final properties of WPC depend on the properties of the original (raw – untreated) components: character of reinforcement, i.e. wood flour (or fibres) and matrix.
They are affected to a large extent also by the used additives.
The products made of WPC are most often used in outdoor applications as in comparison with the natural wood they require almost no care, so they surpass the wood from the viewpoint of all physical and mechanical properties.
Therefore, the surface properties of the WPC samples were determined by employing a fine stylus profilometer Mitutoyo SJ-401 surface roughness tester.

Influence of calcined coal gangue addition on the setting time, mechanical property, mineral phase, and microstructure of MPC had been studied.
Introduction Magnesium phosphate cement (MPC) could be used as rapid repairing materials for pavements, airport runways and bridge decks due to its special properties such as fast setting, high early strength, high volume stability and high bond strength [1,2].
However, there are some factors limit its application, one of these is the higher cost compared to other inorganic repair materials, the addition of mineral admixture, such as coal fly ash, could not only reduce the cost but also improve the performance of MPC [3,4].
Zhang, et al., Properties and applications of magnesia phosphate cement mortar for rapid repair of concrete, Cem.
Yang, Application and influence factors of new super fast setting magnesia-phosphate cement mortar for rapid repair of concrete, Concr, 9 (2000), 49.

The machining surface integrity had important influence on fatigue property of TC21 titanium alloy, which caused by the differences of surface roughness and texture as the dominant factors, and then the variation in surface micro-hardness, metallographic microstructure and the surface residual stress were not the main factors on three above-mentioned machining methods.
The result of the mechanics properties for the TC21 titanium alloy was measured, which was given in Table 2.
So surface layer metallurgical structure alternation is not significant factor affecting on fatigue life of parts, then longitudinal polishing after finish turning will enhance strength on fatigue property of parts.
By this token, surface residual stress is not the main factor affecting the fatigue life of TC21 titanium alloy.
(2)The machining surface integrity had important influence on fatigue property of TC21 titanium alloy, which caused by the differences of surface roughness and texture as the dominant factors, and the variation in surface micro-hardness, metallographic microstructure and the surface residual stress were not the main factors on three above-mentioned machining methods.

Twelve PVC tubed short concrete columns and four columns without PVC tube confined were tested under axial load to investigate mechanical properties of axially loaded PVC tubed short concrete columns .
The principal influencing factors such as concrete strength, loading condition and ratio of height to diameter were studied.
At present, there many the domestic and foreign researchs on mechanical properties of concrete-filled steel tubular column[1-2] and FRP tubed concrete column[3].
While experimental study on mechanical properties of axially load PVC tubed short concrete columns are scarce.
In this paper, to study on Mechanical Properties of Axially Loaded PVC Tubed Short Concrete Columns, fourparameters are examined, they are PVC casing strength of concrete, loading condition, with or without PVC tubed, ratio of height to diameter.

Based on data analysis, the dynamical mechanical behavior of concrete with high temperature is affected by not only the strain rate effect whose influence keeps on decreasing with temperature increasing, but also the high temperature weakening effect.
Meanwhile, experimental research on dynamic strength of concrete under normal temperature has long been conducted at home and abroad, based on the results, dynamic mechanical capability of concrete is extremely complex, and the main factor which makes mechanical behavior of dynamic loading concrete is significantly different from that under quasi-static circumstance is strain rate sensitive effect, and physical parameters such as dynamic fracture strain, secant Young’s modulus, Poisson ratio also change[3{TTP}12289 ,4].
According to the investigation, research findings in allusion to dynamic properties of concrete with high temperature are still rare.
In this paper, with the experimental system of high-temperature split Hopkinson pressure bar (SHPB) and microwave heating technique, a set of high temperature SHPB experiment technique is designed, multiple sets of tests at high and normal temperature are carried out, then the effect of temperature and loading velocity on mechanical properties are analyzed and compared, finally dynamical stress-strain curves of concrete with high temperature are obtained, and dynamical mechanical behavior is analyzed. 2 The SHPB experiment techniques of concrete with high temperature Mixing proportion of materials in concrete specimens is Portland cement: sand: gravel: water = 1:0.951:2.326:0.41 (weight ratio), in which the strength grade of Portland cement is 42.5MPa, diameter of gravel is 5 to 8mm.
At temperatures below 600 ℃{TTP}8451 , the peak stress of concrete improves with the strain rate increasing under the same temperature, while at the same strain rate, the peak stress declines with temperature increasing; namely, it shows the significant strain rate effect and temperature effect in the dynamic mechanical properties of concrete with high temperature.

The experimental results showed that the physical and mechanical properties of Nano-titanium dioxide particles /PP/PLA composites filaments depended on the following factors of the percentage of Nano-titanium dioxide particles, the percentage of maleic anhydride (MAH), plasma treatment parameters: flow rate of helium gas, output power, sample treatment or stationary time and flow rate of oxygen gas.
Among it the flow rate of oxygen gas had the significant influence on the filament properties of tensile modulus, the yield strength and the melting temperature.
To investigate the significance of affecting factors, ANOVA carried out using SAS 8.2 Analyst linear ANOVA and the results listed in Table2.
Factors B, C have major effects on modulus E.
Among it the flow rate of oxygen gas had the significant influence on the filament properties of tensile modulus, the yield strength and the melting temperature.

Therefore, researchers are constantly investigating ways to produce the polymer composites with balanced mechanical properties at a reasonable production cost.
The effects of the mixture reed flour on the mechanical and physical properties of WPC panels were investigated and discussed.
The results indicate that introduction of reed powder negatively affects to the impact properties.
Several factors affect the strength of composites, such as, strengths of fibers and matrix, fiber content and the interfacial bonding between fibers and matrix [7].
The flexural properties of composites affected by reed powder are shown in Fig. 2 (b).

The temperature distribution, macrostructure and microstructure, mechanical properties of the joint were studied along three dimensions (transverse direction, longitudinal direction, thickness direction).
In fact, some authors showed the microstructure in the weld nugget zone to undergo a continuous dynamic recrystallization process [9], leading to elevated mechanical properties.
More in detail, during FS Welding the work piece does not reach the melting point and the mechanical properties in terms of ductility and strength of the welded zone are expected to improve if compared to the classical welding techniques [11].
Jung, The improvement of mechanical properties of friction-stir-welded A356 Al alloy, Materials Scienceand Engineering A355 (2003) 154–159
Jahazi, Microstructure and tensile properties of friction stir welded AZ31B magnesium alloy, Materials Science and Engineering A 472 (2008) 179–186