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Due to the good mechanical properties and energetic properties of the HTPB propellant, it becomes the important source of power for missile and space propulsion.
So it is necessary to research the tensile mechanical properties at low temperature [1-3].
Characteristics of stress-strain curve Mechanical properties and master curve.
(1) Results show that the mechanical properties of HTPB propellant are closely related to temperature and strain rate.
Effect of Temperature on Mechanical Properties of Solid Rocket Propellants[J].

An Assessment on Mechanical and Microstructural properties of Friction Stir Welded 316 L Austenitic Stainless Steel S.
College of Engineering, Trissur, Kerala, India a shashiraj07@gmail.com, b drmurugan@hotmail.com, c kkramachandran@gcetcr.ac.in Key words: Friction stir welding, austenitic stainless steel, Mechanical properties, FSW tool Abstract The aim of the present study is to investigate on mechanical and microstructural properties of Friction Stir Welded 316 L austenitic stainless steel.
Mechanical properties such as Ultimate Tensile strength (UTS), Percentage Elongation (PE), Impact Strength (IS) were evaluated on the welded specimen.
Therefore, in the present work, an attempt is made to friction stir butt weld AISI 316L austenitic stainless steel and to investigate the mechanical and metallographic properties of the joint.
Other factors such as strain hardening and formation of brittle carbide such as chromium carbide may also cause increased hardness in the stir zone.

Analysis of the Relationship between Electrostatic Dust Removal Efficiency and Its Factors in Coal-fired Power Plant LI Zhen1,a CAO Chen-Yu2,b REN Jian-Xing3,c 1Energy and Mechanical Engineering of Shanghai University of Electric Power,Shanghai,200090,China 2Energy and Mechanical Engineering of Shanghai University of Electric Power,Shanghai,200090,China 3Energy and Mechanical Engineering of Shanghai University of Electric Power,Shanghai,200090,China aemail:zlon_the_way@163.com bemail:chenyu19880208@126.com cemail:ren608@163.com Key words: the dust removal efficiency, emission concentration, the influential factors Abstract: With the national environmental standards becoming more and more strict, electrostatic precipitators is facing the new challenges, promoting the efficiency further and reducing emissions are essential to achieve the environmental standards.
This paper analyzed the influential factors of the dust removal efficiency of electrostatic precipitators in coal-fired units, and discussed the relationship between dust removal efficiency and its factors, which lay the foundation for improving the dust removal efficiency.
the dust removal efficiency and the factors of electrostatic precipitator (1) Coal properties Burning coal is varied in China's coal-fired power plants, including coal, sulfur content, ash content, moisture content, low calorific value of coal, the elemental analysis of coal composition and so on which have a direct influence on the performance of the electrostatic precipitator.
Figure. 3 The relationship between the specific resistance of dust, the dust removal efficiency and corona current Conclusion It can be concluded that the relationship between the factor and the efficiency of electrostatic precipitator can be learned through the analysis of the affecting factors on dust removal efficiency of electrostatic precipitators, which lay the foundation for improving the dust removal efficiency.
There are many factors affecting the efficiency of ESP, in addition to the specific resistance of dust, the size of dust particle, the secondary dust, the migration speed, as well as the body structure parameters of the electrostatic precipitator, dust characteristics, gas properties and the operation maintenance level etc, they all have important influence on performance of ESP.

Many factors affect surface integrity including cutting parameters, tool geometry, material properties and vibrations.
Then different factors that affect the above two parameters are reviewed respectively in section 3.
Factors affecting surface roughness and residual stresses Cutting parameters Cutting parameters contain cutting speed, feed rate and depth of cut.
Fig. 4 Residual stress distribution in hard turning AISI 52100 with different rake angle [15] Material properties Material properties contain hardness, density, Young's modulus etc.
The final destination of analyzing the factors affecting surface integrity is to control them, and predict and optimize the whole surface integrity subsequently.

The paper deals with the influence of environmental degradation on the change of the mechanical properties of polymer nanocomposites.
The concept of ageing emphasizes the time factor, which not necessarily means the deterioration of properties. [14,15].
Mechanical properties are strength properties defined in the static tensile test and Charpy impact test.
To determine the changes of mechanical properties after ageing, tensile and impact tests were made.
Summary The aim of the contribution was to investigate the impact of nanofiller in selected mechanical properties of prepared nanocomposites.

There are many factors to affect the fatigue life of component.
Influencing Factors of Fatigue Life and Mechanical Model Influencing Factors of Fatigue Life of Shaft.
There are many factors to affect the fatigue life of shaft with a circumferential notch.
The other class, such as geometrical factors, materials property, environmental conditions and other factors, which show in down line, can not be described by parameters.
Influencing factors to affect the fatigue Life of shaft Materials property Load forms Notched factors Manufacture factors Entironmental conditions Chemical constitution Hardness of material Wearability Loading frequency Loading amplitude Loading course Open angle Depth of notch Tip radius Assemble precision Manufacture precision Corrosion fatigue Heat fatigue Support forms Width of support Span of support Support conditions Dimension of notch Geometrical factors Shape of shaft Position factors Other factors Average stress Move form Lubricate condition Wear Friction and lubricity Fig.1 Influencing factors to affect the fatigue life of shaft Mechanical Model of Shaft for Life Estimation.

As consequence, the interfacial surface area significantly affects the electrical and mechanical properties of those NR composites.
Improvement of the dielectric constant is key factors for increasing the performance of dielectric elastomers [3, 4].
While mechanical properties of composites need to keep constant [2, 3].
Mechanical properties.
The added fillers at low content in NR matrix have slight effect on mechanical properties.

The Effect of the Carbon Nanotubes on the Mechanical Fracture Properties of Alkali Activated Slag Mortars TOPOLÁŘ Libor1,a*, ŠIMONOVÁ Hana1,b, ROVNANÍK Pavel1,c and SCHMID Pavel1,d 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic atopolar.l@fce.vutbr.cz, bsimonova.h@fce.vutbr.cz, crovnanik.p@fce.vutbr.cz, dschmid.p@fce.vutbr.cz Keywords: alkali activation, slag, mechanical fracture properties, three-point bending test, acoustic emission Abstract.
The main drawback of this material is a high level of autogenous and especially drying shrinkage, which causes a deterioration of the mechanical fracture properties.
Type and dosage of the activator as well as the way of curing have a significant effect on the hydration course and final mechanical properties [2].
Our currently solved project is devoted to the investigation of effects of carbon nanotubes (CNTs) as nanosized reinforcement on the properties of alkali activated aluminosilicate materials and the main motivation is to reduce cracking tendency and improve tensile properties of these materials.
Day, Factors affecting early hydration characteristics of alkali-slag cements, Cem.

In order to analyze the physical and mechanical properties of the stratified mudstone, the specimens are collected from southwest Nanning , Guangxi, China. 
The mineral composition and content are analyzed to investigate how much impact on the physical and mechanical properties of mudstone.
Therefore, the mineral composition has an important influence on the physical and mechanical properties.
The test of physical properties.
The wedge split and lubrication have a great influence on the mechanical properties.

Effect of Boron and Cross-Section Thickness on Microstructure and Mechanical Properties of Ductile Iron Keivan A.
Effect of boron contamination on the microstructure and mechanical properties of ductile iron, GJS-500-7 grade was studied.
However, the presence of small amounts of this element (even in trace level) in cast irons can affect the microstructure and mechanical properties.
To determine these effects, boron content and section thickness were the factors that were varied.
Jarfors, Mechanical properties of Solid Solution-Strengthened CGI, Int J Cast Metal Res (2016) 1-8