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To understand the cooperative relationships between different factors that cam influence the manufacture of such bioactive laminates reflecting in their bioactivity and mechanical properties, the multi scale numerical modelling is applied.
Introduction As bioinert material, Ti alloys are the most widely used to produce medical implants due to their exceptional mechanical properties, corrosion resistance and biocompatibility.
Ceramics and glasses are excellent bioactive or bioresorbable materials, but cannot be used alone due to intrinsic brittleness and relatively poor mechanical properties limiting their clinical applications to non-load bearing implants.
In addition to the temperature, texture and grain size, the difference in mechanical properties of oxide fragments and metal, and also dimensions of the oxide fragments, have been recognized as important technological factors.
Porosity, surface roughness and crystallinity are among the factors affecting the material bioactivity that have been modelled in this work (Fig. 2c).

Dominating factors for controlling the (Al,Mg)B2 phase and mechanical behaviors are discussed in terms of structural identifications.
The AlB2 in Al matrix is usually formed from the phase transformation of AlB12 phase, and the AlB12 phase gives a detrimental effect on the mechanical properties of aluminum matrix composites.
Therefore, in this study, the microstructural evolutions of the in-situ (Al,Mg)B2 in Al-Mg-B alloy have been investigated and the effects on the corresponding mechanical properties, as well.
However, at the present stage, further heat treatments have not been undertaken, since the small AlB12 phase would not critically affect the mechanical properties of the composites.
Very recently Jakes [5] invented a new data analysis method to measure the properties of micrometer-sized particles embedded in matrices.

Effects of Strain Rate on Mechanical Properties and Microstructure of V-5Cr-5Ti Alloy Wenjun Hu1, a, Xicheng Huang1, b, Fangju Zhang1,Jun Mei1, Yixia Yan 1, c, Yongmei Chen1 1 Institute of Structural Mechanics, China Academy of Engineering Physics, 621900, PR CHINA a wjhu@vip.sina.com, b huangxc@caep.ac.cn Keywords: Vanadium alloy, V-5Cr-5Ti, mechanical property, strain rate, microstructure Abstract.
It has good properties of stable resistance to neutron irradiation and of thermal stress factor at high temperature [1,2].
Many investigations have been conducted on its mechanical properties, influence effects and microstructures[3-5].
These investigations were focused on the effects of fabrication technology and environment factors on material mechanical properties.
Research indicates that the initial microstructures affect greatly mechanical properties of vanadium-base.

The coating binder in cross-section of coating layer will be migrated, the binder concentration will be different in z-direction of coating layer, which affect some properties of coated paper.
The paper studied the effects of coating progress on binder migration and affected factors.
Numerous and related factors affect binder migration, such as coating process, coating color formulation, base paper properties, coating method, drying way and drying speed, binder types, pigments and so on, therefore so far it is difficult to find a migration rate or concentration distribution theory equation or empirical formula to describe the binder migration accurately.
The final result of coating binder migration in coated paper influences the structure and surface state, affects the coating operation and the properties of the coated paper.
This paper studied the influence of coating process, applied SEM-EDMA and ESCA to measure binder migration concentration [4-5], and further discussed on migration mechanism and the influence factors.

Solution heat treatment (ST) and artificial aging (T6) were given to specimens to improve the mechanical properties of the joints.
Furthermore, the solution and aging heat treatment can restore the mechanical properties of the joints successfully [14].
The size and distribution of the precipitates play an important role on the mechanical properties of the weld.
Effect of post weld heat treatments on microstructure and mechanical properties of friction stir welded joints of Al–Zn–Mg alloy AA7039[J].
The effect of post-weld heat treatment on the mechanical properties of 2024-T4 friction stir-welded joints[J].

Analyzed by finite element reinforcement ratio, concrete strength and other factors on the mechanical properties of concrete under axial compression reinforcement FRP pipe, the analysis of the results shows: The increase of reinforcement ratio to improve the point load of the specimens and improve the composite column ultimate bearing capacity, but the reinforcement ratio increase will reduce the binding effect of the FRP pipe; The whole component be improved the strength of concrete can improve the ultimate bearing capacity, but it reduces the mechanical properties of the specimens.
To a certain extent to avoid the Required parameter choice and parameters of the complex relationship between each other, The interference of random factors test process, expensive trial funding and laboratory conditions [3].
But the GFRP pipe ultimate strain did not differ much, Although reinforcement ratio increase reduces the GFRP tube binding effect of concrete, but does not affect the overall mechanical properties of the specimens, it makes the mechanical properties of the specimens was improved. 4.2 The comparison and analysis of Ultimate bearing capacity According to the specifications given by the normal section [5] bearing capacity calculation formula of axial compression member: —①Each set of specimens with- out the bearing capacity of GFRP tube constraints.
Table 5.1 Comparison of different concrete strength ultimate load analysis Concrete strength The model ultimate load N1 Calculated N2 Improve multiples of N1 / N2 C25 3451 941 3.67 C40 4267 1406 3.03 C60 5014 2024 2.48 According to Table 5.1, Although bearing capacity while improve the strength of concrete can improve the limit of the component, but without addition of FRP tube confined reinforced concrete ultimate bearing capacity comparison , with the strength of concrete increase, multiples reduced instead .The reason is: (1) High strength concrete has been damaged by the pressure, circumferential deformation is large while 5mm GFRP pipe apparent thickness is not enough, it can't provide sufficient constraints to limit lateral deformation of concrete, reduce the mechanical properties; (2) reinforcement rate of 1.306% is low .reinforcement ratio is also an important factor to affect the lateral deformation of concrete. 6 Conclusion (1) In this article, the finite element modeling
Mechanical Behaviors Study on GFRP Tube Filled with Reinforced Concrete Members.

The Two Import Properties of Plastic and Their Influences on the Injected Parts The physical properties of polymer are the determining factors the design engineering must use in selecting a polymer with those properties which most nearly meet the requirements of a product.
The mechanical and physical properties of polymers are greatly influenced by the degree of crystalline.
Mechanical properties perpendicular to the molecular orientation are decreased and the shrinkage is increased.
The degree and the direction of the orientation are important factors which influence the properties of the injected part.
Hence, the two factors must be controlled to obtain high quality parts.

It was reported that Ce-Y-TZP ceramics have excellent comprehensive mechanical properties [4-6].
In the present study, effects of CeO2 on the mechanical properties and microstructure of Y-TZP nanocomposite ceramic die material were studied, and ceramic die material with excellent comprehensive mechanical properties was achieved.
Fig.1 shows the variation of the mechanical properties of 3Y-TZP nanocomposite with different CeO2 content.
The variation of mechanical properties of 3Y-TZP nanocomposite can be attributed to the differences in material microstructure.
It suggests that the suitable addition of rare earth elements is one of the critical factors affecting the mechanical property of the nanocomposite ceramic die material.

Several examples are analyzed to derive DSIFs for varying crack lengths and the spring constants reflecting imperfect electro-mechanical bonding and the material properties of the piezoelectric layers.
As a result, the originally strong and conductive interfaces may deteriorate, leading to flaws that appear as discontinuities in certain electro-mechanical properties across the interfaces [2, 3].
Dynamic stress intensity factors (DSIFs) and electric intensity factors are normalized by specific parameters, denoted as and , where is the half-length of the crack.
Material properties for piezoelectric ceramic PZT-4 [21] PZT-5H [21] 2.56 3.53 12.7 17 6.4634 15.1 7500 7500 First, we deal with the single crack problem.
Goloubeva, Electroelastic properties of cracked piezoelectric materials under longitudinal shear, Mechanics of Materials 24 (1996) 287-303

That also reveals the changeable characteristics and affected factors of the damping rubber of the high elastic fastenings in large distortion condition.
Therefore, the frequency and amplitude are the main factors which affect the dynamic stiffness of rubber components.
Conclusion Amplitude and frequency are the critical factors affecting on the dynamic characteristics of rubber absorber in rail fastening.
This present results will contribute to evaluate dynamic properties and optimization design of rail fastening.
Mechanical vibrations.