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The composites were evaluated by their physical and mechanical properties.
Moreover, they present superior properties than its isolated constituent materials.
For elasticity modulus (MOE) in static bending there was significant interaction between the factors (Table 2).
For rupture modulus (MOR) in static bending, there was no significant interaction between factors (Table 2).
The composites without chemical modification showed good results for physical and mechanical properties.

It was observed that the increase of zinc oxide concentration aggregate a good antibacterial property in the samples tested without cause significant changes in the mechanical properties of the composites.
Introduction Innumerable problems related to bone structures motivated many researchers to look for alternatives to replace the damaged tissues by artificial materials that guarantee compatible mechanical, chemical and biological properties.
By these means, it is possible to aggregate different properties to common materials, thus supplying the properties required for therapeutic applications of the bone tissues.
The mechanical tests showed that it is possible to add zinc oxide nanoparticles in the composite without causing a negative effect in the mechanical properties associated with the tensile strength of the composite.
Conclusions The mechanical performance tests showed that the addiction of the composite with zinc oxide nanoparticles does not significantly affect its mechanical properties.

The former problem is an unacceptable defect as it adversely affects the production yield and cost per cell fabricated.
Cracks in solar cells are one of major problems in photovoltaic industry as they affect the reliability and durability of solar module.
Properties of copper ribbon and silicon wafer Copper Silicon Ref.
Factors and levels considered in the experiment Factor Level 1 Level 2 Level 3 Soldering temperature [°C] 180 185 190 Soldering time [ms] 1,000 1,200 1,450 Results and Discussion Fig. 4 presents the effects of soldering temperature and time on the percentage of crack area and adhesion force between the ribbon and substrate.
Wiese, Mechanical Stress Analysis in Photovoltaic Cells during the String-Ribbon Interconnection Process, 15th international Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (2014)

According to structure and features of variable cross-section strut-and-tie,combing with its' geometric properties and applied stress ways, at the basis of nominal stress method, the fatigue life of variable cross-section strut-and-tie is analyzed in the paper.
Introduction Fatigue failure is the most common type of mechanical parts failure modes.
According to statistics, 50% to 90% failure of mechanical parts is fatigue damage [3], and the failure has related with the fatigue life [4].
(A new computation method of fatigue reliability) There is many factors to affect fatigue life, including stress concentration, the impact of size, surface state and impact loads and so on.
S-N curves between materials and structure are very different. when S-N curves are changed from material to structure, there is a number of factors is need to modify, including the surface quality factorβ, load factor dimensionsε, fatigue notch factor fK , methods LC and other factors, which can be determined by the formula Eq.6 aa L f S C K σ εβ= (6) And aσ corresponds to the stress of the material S-N curve, and aS corresponds to structural parts of the S-N curve of the stress.

In such cases, by analyzing the rock burst tendency of a particular type of deep mining pit and occurrence of the mining process, rock samples drilled from the coal mine were taken for the conventional mechanical properties test and rock burst tendency test respectively under dry and wet state.
Coal and rock impact characteristic test In order to measure rock mechanical properties, coal and rock samples drilled from two different coal-faces were taken for routine test by using MTS815 rock mechanics test system (Fig.1) and test results are shown in Table1 to Table3. 2#coal seam is a tendency to strong impact; the roof is a moderate impact tendency. 4# coal seam is moderate impact tendency, roof no impact tendency.
Affected by the pressure in the mining and mechanical balance condition suffered disturbance, the accumulated energy is produced from the weak link in the release of impact failure, while operating near the fault the possibility of triggered burst will increase.
On the other hand, through changing physical and mechanical properties as well as structure of coal and rock by high-pressure water fracturing the coal, and promoting hydration to make the coal and rock strength and elastic energy savings ability decline to weaken burst tendency.
Summary (1) Impact strength caused by coal seam roof and floor has a great relationship with the rock properties.

The results of tested fresh properties are presented in Table 5.
Limestone addition supplies the gaps among coarse particles, reduces the porosity and increases the density of concrete lead to improved mechanical properties.
SCC made with higher quantity of filler limestone showed improved fresh properties. 3.
Mechanical properties, durability, and life-cycle assessment of self-consolidating concrete mixtures made with blended portland cements containing fly ash and limestone powder, Cement & Concrete Composites 56 (2015), 59-72
[19] ERMCO (European Ready Mixed Concrete Organization), Guidance to the engineering properties of concrete, 2006.

The development of thin ceramic shell mould in investment casting process is very crucial as this mould inherited brittle property and highly exposed to the cracking mechanism.
The strength and integrity of the mould are very important factors in ensuring that the metal part has the proper dimensions.
Improvement of these mechanical and physical properties of the ceramic shell will definitely improve current casting quality and reduces manufacturing costs.
Factors affecting shell strength and the effect of dry time on shell strength presented at the 22nd EICF Conference (1992)
Effect of moisture upon mechanical properties of ceramic moulds during high pressure steam dewaxing, Material Science and Technology. 19 (2003) 907-914

In this study, the aim is to produce a Polyetheretherketone/Hydroxyapatite (PEEK/HA) composite which posses balance mechanical properties and good spreading of bioactive ceramic, hydroxyapatite.
Finally, these composite be capable of being one of the biomedical part seing as the mechanical properties were found to be within the properties of human cortical and cancellous bone.
The PEEK has excellent properties in term of highly chemical resistance, inert to all organic and inorganic liquid.
Homogeneously dispersed HA in the PEEK matrix play a key role, mainly in mechanical properties.
Therefore, this study goal is to evaluate the mechanical properties of silane-treated HA and the biological performance of this composite during in vitro testing.

The goal was to evaluate the effect of CSR toughening on processability, mechanical properties and impact strength as well as the interaction with inorganic color particles in the submicron range on the GFRP.
They are advantageous in production and offer a widely adjustable variability of chemical and mechanical properties by the variation of e.g. the chemical precursor, the hardener, the initiator or the accelerator.
For further enhancing critical material properties nano-sized fillers can be used.
Thereby the interphase properties become dominant and can significantly change the material properties, also due to interactions between macromolecules and particles [7].
Maazouz, Influence of the particle structure and size on the rheological and mechanical properties, J.

In the regulation of the organic matrix, it can be directed self-assembly into specific biological minerals, and can give the bone good mechanical properties and biological activity.
They can provide mechanical and biological properties for the organization.
Literature shows that crystal structure of hydroxyapatite thin can ensure that the bone has strong and not brittle, hard and soft mechanical properties.
These are the main factors causing the sports injury.
Nano calcium phosphate can be synthesized with special structure and morphology in the future, make its surface can have special topology or physical and chemical properties, and can selectively adsorb biological protein or biological factors.