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Introduction The main factors affecting the properties of aluminum matrix composites (AMCs) include reinforcement’s size, preparation process and mass fraction of the reinforcements [1].
Up to now, a lot of researches have been carried out about the effects of the content of mm-scale reinforcements on the microstructure and mechanical properties of metal matrix composites [7].
Effects of Nano-SiCp Content on Mechanical Properties Fig. 4 shows the mechanical properties of as-cast A356 and its nanocomposites with different contents of nano-SiCp.
SiC content effect on the properties of Cu-SiC composites produced by mechanical alloying.
Microstructure and mechanical properties of the semisolid slurries and rheoformed component of nano-sized SiC/7075 aluminum matrix composite prepared by ultrasonic-assisted semisolid stirring.

This paper follows a previous work focused on fracture properties [4].
The results revealed that even a small amount of fibers improved mechanical properties and changed the post-peak brittle response.
Alvarez, Masony repair lime-based mortars: Factors affecting the mechanical behavior.
Kabele, Fracture Properties of Fiber Reinforced Lime-Based Mortar, in: T.
Černý, Mechanical, fracture-mechanical, hydric, thermal, and durability properties of lime–metakaolin plasters for renovation of historical buildings, Construction and Building Materials. 31 (2012) 22-28

After strenuous exercise , sportswear control performance on the water is a major factor affecting human comfort , good fiber or fabric thermal and moisture control should have the function of sweat and perspiration and rapid drying function.
Wicking fabric to factors twist , fiber cross-section shape.
Three-dimensional fabric composites are integral, non-hierarchical structure, with specific strength and high modulus and excellent mechanical properties , and therefore has great potential applications in the field of sports protection .
The use of three-dimensional fabric made ​​of high performance fiber composite material is lighter and more excellent mechanical properties , can be used to produce the main load-bearing structural parts and special parts with a variety of functions.
As the three-dimensional weaving technology directly shaped woven pieces of different shapes overall , but also by the requirements of the yarn structure design, and therefore the mechanical properties and other properties on the three-dimensional fabric composites with adjustable resistance, in this regard in the production of sports protective gear has a good advantage .

Table 1 Chemical compositions of 380CL(wt%) C Si Mn P S Alt Standards ≤0.16 ≤0.30 ≤1.20 ≤0.030 ≤0.025 380CL ≤0.12 ≤0.10 ≤1.10 ≤0.020 ≤0.010 0.020-0.050 Mechanical Properties.
Table 2 shows the results of mechanical properties.
The results of mechanical properties in Table 2 show that values of strength and elongation are within the normal range.
Furthermore, the main factors caused butt welding cracks are material performances, baiting, crimping, the status of the electrode and its tip holder, scumming, side cut, rounding and flaring[5,6].
Bryant, Picklin: Steel properties and structures.

Because the working condition of bridge crane is complicated, adding work load randomness, the main carrying structure of bridge crane endure fatigue load, which increases uncertain factors for bridge crane's safety and reliability.
The key problem is that welding quality of welding places is to achieve the design standard, in addition to steel plates meeting mechanical properties.
In addition to the influence of welding quality, there exists an important factor affecting fatigue failure of main girder which is complicating alternated load in the bridge crane service process.
Chemical properties of material are shown in table 1 and mechanical properties of material are shown in table 2.
Table 1 The chemical properties of material Q345B steel Chemical elements C Si Mn P S Measured value 0.14 0.13 0.37 - 0.01 Standard value 0.12～0.20 ≤0.30 0.30～0.70 ≤0.045 ≤0.045 Table 2 The mechanical properties of material Q345B steel Mechanical properties Tensile strength MPa Yield strength MPa Elongation % Measured value 485 345 31 Standard value 375～500 ≥235 ≥26 Test results.

Fatigue properties were determined in flexural bending in the range 10 4 to 10 7 cycles.
Introduction It is well known that fine grain size improves properties such as tensile strength, impact toughness and fatigue strength, and therefore improving the mechanical properties of metals and alloys by refining the grain size has been a challenging effort during several decades.
Anyhow, particularly in high cycle regime, as tested here, the initiation stage is a major fraction of fatigue life (more than 90%, see Figures 6-7), and therefore factors affecting it are more important.
Compressive residual stresses are an additional factor on fatigue resistance, especially in high cycle region, where structures with surface compressive stresses have been shown to have superior fatigue properties [21, 22, 26].
However, the chemical compositions of the steels are also somewhat different affecting sensitively the stability of the austenite phase.

Capillary water reduces the stability of ancient city wall by changing the soil physical properties, chemical and ice split role.
The failure process of soil slope is complicated and controlled by many factors.
It is controlled not only by many internal factors [1] but also human activities and natural external factors.
The collapse process of ancient city wall caused by capillary water is different from the collapse process caused by other factors.
Capillary water make soil loose and deformation until cracks and collapse occur by changing the physical and mechanical properties of the soil of the ancient city wall, the role of soluble salts and ice split, thereby affecting the superstructure and the overall stability of the ancient city wall.

The pros and cons of the five rubbers are analyzed by friction and wear properties of the above experimental.
TPU is the most versatile engineering thermoplastics with elastomeric properties.
The mechanical properties, rheological properties and solvent properties of these two kinds of blends are investigated.
Friction coefficient with time under dry sliding （a） TPU （b） blended rubber by 8:2 ratio （c） blended rubber by 5:5 ratio （d） blended rubber by 2:8 ratio （e）PVC Sliding process, the working conditions, friction and wear is often due to temperature rise caused a lot of material mechanical properties (elastic modulus and hardness), and lubricating properties as the interface temperature rise degradation, thus affecting their tribological behavior [9].
An investigation of mechanical and rheological properties of TPU/PVC blends: influence of anhydride additives, mixing procedure and PVC form.

These studies pointed out that the degree of plastic deformation is a key factor to improve magnetic properties.
However, there are still many other process parameters that could affect the magnetic properties either positively or negatively.
Therefore, liquefy of Nd-rich phase would greatly affect the flow stress of NdFeB magnet.
There should be other factors that caused the significant decrease in iHc values.
Among all possible factors, the influence of heating method should play a decisive role.

In the experiment, the welding thermal cycles under different cooling conditions with the peak heating temperature of 1320 o C were simulated via the Gleeble-1500D thermal/mechanical simulator.
The SH-CCT diagram of NM360 has been established by investigating the microstructure transformation course and the hardness of the welded heat-affected zone (HAZ) near fusion line during different cooling process.
Cold crack which arises in the welded heat-affected zone (HAZ) is the key factor to cause the poor weldability.
As a result, excellent combination property of welded joint can be obtained.
Cooling rate is a crucial factor in affecting the microstructures and properties of HAZ.