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O.Bayard et al[3] found that the distribution of steel fiber has a great influence on the mechanical properties of RPC, RPC by improving the preparation technics can regulate the distribution of steel fibers in the matrix, thus improving the mechanical properties of RPC.Cao Feng et al[4] mixed with fly ash in the cement matrix, the use of different particles larger differences in the characteristics of the activity, prompting the hydration step in achieving effective hydration process and reduce the RPC filling costs, etc. do the research, and achieved certain results.
Selection of factors and levels.
The results of a comprehensive literature survey and the actual situation , selective preference larger factors affecting the quality of the concrete , to determine the following factors and levels, as shown in table 2.
(2)For the 28-day compressive strength of RPC, the factors affecting its primary and secondary order are: steel fiber - water-cement ratio - curing type - sand type
Although steel fiber content increases , the mechanical properties of RPC has greatly improved, but the workability of concrete have a greater reduced, and there will be a substantial increase in cost .

The study of the effect of cord construction on their mechanical properties is essential to the improvement of the performance characteristics of rubber products.
Better understanding of their mechanical properties is needed to improve the performance characteristics of the pneumatic tires, especially on duration and energy saving.
Many efforts have been dedicated to investigate the mechanical properties, deformation and failure behavior of the cord-rubber composites [1-8].
Tabaddor[3] discussed the dependence of the effective properties on the applied boundary conditions in the RVE model.
Besides the constituent materials, the interface between the two phases is also a major factor affecting the overall properties of the composites, while its effect is not taken into account in the classical theory of composites.

Welding involves a rapid change in the temperature which alters the microstructure and the mechanical properties of the steel.
Understanding the influence of welding conditions on the mechanical properties of DP 600 is useful for both the automotive industry and steel producers.
The process comparison shows differences in the final mechanical properties resulting from the microstructural differences in the welding zones.
The first two factors are influenced by welding process parameters and governed by the net heat input and power density distribution.
Mechanical testing results The differences in the weld microstructures affect the mechanical properties of the dual phase steel, as shown in table 3.

The dynamic mechanical response and the fracture toughness of the aluminum alloy were measured by SHPB with different wedge shapes, and the influences of wedge shape on determination of dynamic fracture toughness was analyzed in this study.
The mechanical properties of this material are listed in Table 1.
Table 1 The common mechanical properties of 7075-T6 aluminum alloy Young’s module Poisson ratio Yield strength Tensile strength Elongation Area reduction Fracture toughness 72GPa 0.33 559MPa 607MPa 9.7% 20.4% Experiment Setup.
Fig.4 The load history obtained from the SHPB loading three-point bending specimen test Fig.5 The dynamic stress intensity for the specimen calculated by the load data However, there were many other factors influencing the calculating results, such as the contact state between the incident bar and specimen, or the specimen’s dimension.
In order to eliminate those affecting factors mentioned above, the experiments were conducted repeatedly without specimen.

A study of the mechanical properties as well as microstructure of the developed composites had been performed.
Introduction Many engine components need to work for longer life in challenging conditions without comprising the mechanical properties.
Comparatively to LM26 master alloy, the fabricated composites exhibited superior physical as well as mechanical properties when examined.
The composites' mechanical properties are enhanced by the SiO2 particulates reinforcement’s inclusion.
A study had been conducted on fabricated metal matrix composites' mechanical properties as well as microstructure.

Introduction The formation of ink film with desired print density on paper substrates is consequentially dependent on the ink absorption and ink receptivity, which is determined by paper surface structure and printing condition.[1, 2] There are many factors affecting the structure and surface properties of the coated paper in the papermaking process, which include coating recipes, coating conditions and calendering, etc.
In fact, coating conditions are the important factors which affect structure and properties of coating layer.
Results and Discussion Surface properties of Coated Paper.
The Results showed that drying methods had the influence on the paper properties.
The findings indicated that coating methods affected the surface properties.

The properties of CCTCM was evaluated by the surface modification effect(sediments in the non-polar medium) of calcium carbonate and the properties of polyethylene filled by CCTCM.
The weight ratio of grinding media to mineral feeding is one of the most important technology factors of wet ultra-fine grinding.
Compared with the calcium carbonate, PE filling CCTCM has better properties except critical stretching elongation.
This method overcomes the defects of the traditional modification method. 0 1 2 3 4 5 0 1 2 3 4 grinding time， h d50,um 0 1 2 3 4 5 specific surface area， m2/g(2) In the process of preparing CCTCM by mechano-activated modification method, grinding conditions, including the modification time, the mixing speed, the ratio of grinding media and the modification fineness, are essential factors affecting the modification effect and the performance of CCTCM
This is proved by the better physical properties and performances of packing polyethylene (PE) of CCTCM.

And it seriously affected mechanical properties of anchor structure system of underground engineering under complicated erosion environment.
Introduction Reinforcement corrosion is one of important factors to cause degradation of RC structure.
Cracking Mechanical Model of Bolts Rust Expansion Simplified Cracking Mechanical Model of Bolts Rust Expansion.
Stress Analysis of Simplified Mechanical Model of Bolts Rust Expansion Hoop Stress in Surrounding Rock Mass.
Conclusion The critical cracking model analysis of different medium materials show that the cracking order of mortar layer and rock mass is depended on the mechanical properties of mortar and rock mass, in-situ stress and thickness of mortar layer.

Magnetic properties obtained for Fe-50Co alloy produced by MIM with elemental powders A.
Taking into account the above mentioned factors, was decided to analyze how the changes in chemical composition, by replacing pre-alloyed powders with the elemental powders, affect the processing and, more specifically, the sintering step and the final magnetic properties.
The presence of carbon could adversely affect the magnetic properties.
[2] SOURMAIL, T., Near equiatomic FeCo alloys: constitution, mechanical and magnetic properties, Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, (2003)
[5] SUNDAR, R.S., DEEVI, S.C, Influence of alloying elements on the mechanical properties of FeCo-V alloys, Chrysalis Technologies Incorporated, Richmond, VA, USA, (2004)

Change in grain size and randomization of crystal orientation due to the heat treatment could affect the fatigue property. 
Mechanical properties of the alloy with and without T6 treatment are shown in Table 1.
Table 1 Mechanical properties for materials used at room temperature and 150℃.
Figure 6 shows relationship between fatigue crack growth rate, da/dN and stress intensity factor range, ΔK.
[3] Stress intensity factors handbook Vol.1, ed. by Y.