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The composites were tested to study the physical, chemical and mechanical properties.
It was demonstrated that the increase of 5wt.% of coupling agent in the two types of polymers significantly improved the mechanical properties and adhesion between the phases but the increase in cork concentration decreased mechanical properties and crystallinity.
The CPCs with PP showed to have better mechanical properties, better aesthetic and internal structural quality, and easier processability than those with HDPE matrix.
Several factors may have led to this type of rheological behavior by the material such as molecular structure, weight and distribution of cork in the polymer.
The addition of coupling agent and the increase of the cork concentration significantly affected the properties of the composites, which was confirmed by the results of the mechanical tests and validated by SEM image analysis.

The characteristic properties of aluminum, high strength stiffness to weight ratio, good formability, good corrosion resistance, and recycling potential make it the ideal candidate to replace heavier materials in the car to respond to the weight reduction demand within the automotive industry [1].
It is metallurgical, mechanical and technological factors that affect the cracking susceptibility of the aluminum during the welding.
The mechanical factor is the rigidity restrain of the joint.
Mechanical testing.
Table.8 Mechanical properties at room temperature of 6061 aluminum joint UTS/ MPa EI / % Method Joint type As welded Natural aging 30 days As welded Natural aging 30 days Fracture location Butted 204 213 7.2 9.8 Base metal TIG Lapped 96.3 104 � � Weld metal Butted 216 229 6.2 8.7 Base metal MIG Lapped 71.3 90.7 � � Weld metal Table.9 Bend testing results of the 6061 aluminum butted joint at temperature Bending angle 180° Method State Face bend Root bend As welded Accep.

The density of these factors, the board, hot pressing process (pressure, temperature and time), sizing amount, analysing and sizing amount proportion factor is particularly important, the veneer of straw composite board research, i.e., according to the ratio of glue and adhesive two factors as variable factor are studied.
This chapter will be divided into two parts to discuss the above factors affect the performance of plate.
The density is an important factor to affect the veneer straw composite plate bending performance.
Obviously, the density increases to enhance the flexural properties of the composite panels.
Figures 1-4 clearly show, the plate MOR significant increase in flexural properties of the composite plate also increases with increasing density.

The material properties are defined as follows, density: ρ=7860kg/m3, modulus of elasticity: E=2.06×1011Pa, Poisson's ratio: ν=0.3, friction coefficient: µ=0.2.
It can be seen clearly that the major influencing factors on the contact area of the flange face isn’t clamping force.
In contrast, spindle speed is the major factor affecting the contact area on flange face.
China Mechanical Engineering, 2004, 15(5):391-394
Chinese Journal of Mechanical Engineering, 2004, 40(2):83-86

Moreover, because the mechanical properties of flexible sound absorption materials are poor, they can’t be used as structural material directly.
They need other rigid materials to strengthen its mechanical properties in the using process.[7-9] As a metal based porous material, foam metal sound absorption material has better mechanical properties and can be used directly as structural materials.
Main factors affecting the sound absorption, mainly for flow resistance, porosity and density, thickness and cavity structure factor. 3.1 Flow resistance Porous material should have a reasonable flow resistance.
In order to make the theory close to reality, a coefficient is called structure factors.
[7].Yu Haijun,Yao Guangchun,Cheng Yan, et al.Influence factors of sound absorption properties of closed-cell aluminum foam[J]., The Chinese Journal of Nonferrous Metals,2008,18(08):1487-1491

The piezoelectric-driven uniaxial stress-strain measurement system was designed to evaluate the mechanical properties of thin films.
The mechanical properties of materials begin to deviate from bulk scaling laws when the characteristic dimensions become small, so that we can no longer apply the bulk properties to microscale systems such as thin films, MEMS, etc.
Thus, measurement technologies for mechanical properties in the microscale range have become critical.
The piezoelectric-driven uniaxial stress-strain measurement system was designed to evaluate mechanical properties.
In this study, we confirmed that the mechanical properties of the MEMS materials are dependent on the device scale and surface flaws on the fabrication processes.

These factors are the most essential for the lifetime of the concrete elements.
Freeze-thawing resistance of the concrete depends on some of its properties such as the strength of cement stone, dilatability, concrete creep, but the most essential properties are saturation degree and pore structure of the cement stone [4].
The normative approach to the cycle numbers using transitions through 0°С does not take into consideration such important factors affecting freeze-thaw resistance as water saturation, variability of negative temperatures, the concrete state of stress and some others.
The goal is to develop the mechanical model of concrete degradation under the effect of chloride ingression and other factors.
The goal is to develop the mechanical model of concrete degradation under the effect of chloride ingression and other factors.

The mechanical properties are better when the grain boundary particles are dissolved and the Cu content in the matrix is increased.
Alloy development experiments carried out at the University of Sheffield on A201 alloy have shown that the alloy behaves well under thixotropic conditions and develops high mechanical properties after appropriate heat treatment.
In semisolid forming the best mechanical properties are exhibited by small grain size, shape factors above 0.6-0.7 and homogeneous globular size of the primary phase.
All samples were compared for liquid fractions and changes in microstructure; average grain size and shape factors are also compared.
Hence, if repeatability and consistency of mechanical properties of the final product is very important in an application, then MHD would appear to be a better but costlier feedstock production route.

Rice straw was successfully tested for mechanical strength and thermal properties [29-31].
For effective extraction of lignin, the factors which affect the lignin extraction are concentration, temperature and reaction rate.
Mechanical properties of PLA are excellent.
Fig.4 Major factors affecting the properties rice RS and RH reinforced polymer composite There are various factors that are responsible to change the properties of composite material (Fig.4).
Gope, “Mechanical properties of rice husk flour reinforced epoxy bio-composite,” Int.

They suffer from several major limitations such as uncertainty of the mechanical properties of the layers, the state of stress in the formation, etc.
Factors of Affecting Fracture Propagation Fracture propagation is not only determined by internal factors of the reservoir mechanical properties and fluid properties, but also affected by external factors of injection pressure and injection rate.
The reservoir mechanical properties that affect fracture dimensions most are the in-situ stress distribution, Young's modulus, fracture toughness.
The reservoir mechanical properties used in this study are listed in Table 1.
The numerical results of typical examples show that fracture growth is mainly characterized by the reservoir mechanical properties, fluid properties, in-situ stress, fracturing treatment manner, etc.