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It is known that composite properties do not depend only on the types of the matrix and fiber, but also other factors such as manufacturing processes, fiber concentration, fiber length, fiber orientation and fiber matrix adhesion.
All these factors are interconnected [8-11].
The mechanical properties of the obtained composites materials are presented in Table 2.
[2] Song Guiming, Li Qiang, Mechanical properties of short carbon fiber-reinforced TiC composites produced by hot pressing, J.
Effect of carbon fiber surface functional groups on the mechanical properties of carbon–carbon composites with HTT.

The research programs aimed at developing the new methods for designing compounds and evaluating the performance properties of asphalt concrete are becoming widespread.
The structure of asphalt concrete is characterized by the mass ratio of grains of various sizes, their shape and properties of the mineral material, as well as the structure and properties of the binder.
The basic physical and mechanical properties of asphalt concrete are determined by its structure.
The research aimed at obtaining its optimal compositions and properties has been conducted for a long period.
All this suggests that the laboratory AP should carry out continuous monitoring of the asphalt mixture composition quality, which affects the physical and mechanical performance characteristics of the coating.

Despite the similar chemical compositions of the samples, the different production route determined a significant variation in microstructural features due to the different solidification conditions experience by the material, easily affecting the mechanical properties.
Tor, Anisotropy and heterogeneity of microstructure and mechanical properties in metal additive manufacturing: A critical review, Mater.
Sahoo, Mechanical and wear properties of rheocast and conventional gravity die cast A356 alloy, Mat.
El-Gohry, Microstructure and mechanical properties of extruded Al–Si alloy (A356) in the semi-solid state, Mater.
Cairney, Factors that affect the properties of additively-manufactured AlSi10Mg: Porosity versus microstructure, Addit.

The aim of this work was to investigate the pozzolanic properties of waste paper pulp ash and how they affect high-performance concrete (HPC).
The findings indicated that FA and GGBFS, SF, and hybrid fibres notably enhanced the residual mechanical properties of HPC.
Oduoye, Mechanical properties of high-performance concrete with guinea corn husk ash as additive, LAUTECH J.
Properties of papercrete, J.
Yahaya, A Review paper on the effect of waste paper on mechanical properties of concrete, IOP Conf.

Because the factors are independent of each other, interactive effects between them are not taken into consideration.
As being shown in the table, the sequence of the most influencing factors is grinding depth, workpiece speed and wheel speed in order.
(3) Among the influening factors affecting the depth of hardened layer, grinding depth is the most significant one, workpiece speed takes the second place, and wheel characteristic is minor one
(4) Among the influening factors affecting the hardness of hardened surface, only grinding depth is significant relatively, workpiece speed and wheel characteristic is not effective obviously.
:Mechanical Property Improvement of Quenchable Steel by Grinding.

The material model took into account temperature dependency of thermal and mechanical properties.
These defects can affect joint tightness and may lead to joint failure.
The material selected for the simulation was Al 6061-T6, and it was modeled as multi-linear elastic-plastic, with temperature dependant mechanical and thermal properties [15].
From estimated heat generation formulae, µ and δ are factors controlled by the welding conditions.
The adopted simple model can closely predict stresses and temperature distribution in the workpiece, but it is not capable of predicting the exact state at the nugget and thermo-mechanical affected zones.

The results indicate that the amount of ZrO2 additive is one of the key factors controlling of leucite crystallization.
The results showed that the mechanical properties of leucite glass-ceramics increased as the amount of ZrO2 was increased.
As the amount, average crystal size and structure of the leucite phase directly affect the thermal and mechanical properties of the final composite material; suitable technology of its preparation was necessary to be developed [5].
Characterization and Mechanical Property Tests of the Glass-ceramics.
The introduction of ZrO2 is beneficial to the improvement in the mechanical properties of the leucite glass-ceramics.

Introduction Many factors affect the compressive strength of concrete, such as cement composition and fineness, water-to-cement ratio, aggregate, age and temperature of curing.
It improves a lot of properties of hardened concrete [1].
The primary factors that affected the compressive strength of concrete are the ratios of water, SF to binder materials and time of curing in water.
Investigations on mechanical properties of high strength silica fume concrete.
Mechanical properties of polymermodified concretes containing expanded polystyrene beads.

In order to tackle the problem, new and scrap Mo fibers are added to PC to improve its mechanical properties [4].
Fibers can restrain deformation of matrix, thus improving the mechanical properties of MFRPC.
Influencing factors of interface bonding property.
Therefore, appropriate mass ratio of resin and hardener, the addition of coal ash can increase the density of interfacial transition zone, improve area properties around fiber, and can also enlarge wettability, contact area, interfacial friction of fiber-matrix and aggregate-matrix, thus effectively improving interfacial bonding properties [6,7].
Reinforcing Finite Element Analysis of New And Scrap Fiber Surface state, one of microstructure characteristics of fiber, is not only the important factor to affect interface bonding property but the prime determinant to influence fiber reinforcing effect.

Introduction Steel - concrete composite box girder bridges, its excellent form structure, reasonable structure and layout, give full play to the mechanical properties of tensile strength and compressive strength of concrete steel[1-2].In recent years it fully meets the modern long-span bridges, high performance and aesthetics requirements, and thus has been rapid development.
The stability of the structure of the portfolio, but lagging behind the design process more research and design experience using all-steel box-shaped bridge, to make the stiffening ribs set quite reasonable[3-4].In this paper, using the finite element method to analyze the box girder transverse stiffening ribs under different circumstances affecting the setting of structural stability were studied.
As can be seen from the two formulas, when the transverse stiffening ribs density increases, the critical buckling load factor and will have improved to some extent, but it does not increase in a linear form, which is a box girder transverse stiffening ribs on affect the structural stability provides a theoretical basis and foundation.
Table 1 Material properties: Table 1: Unit Material Properties Element material properties Parts Material Elastic modulus(Mpa) Poisson's ratio Density (Kg/m³) Beam Q370qD 2.1×104 0.3 7849 Stiffeners Q345B 2.1×104 0.3 7849 Panel C50 3.45×104 0.167 2500 Constraints: The bearing fixed hinged; side mount bracket using two-way form of constraint box girder vertical and lateral displacement.
Weight load is: weight after a bridge full bridge all members; lane load: load by 1.3 times to add highway, four lanes calculations, single-lane loading 13.65KN / m, driveway coefficient 0.67, power factor 1.05 [7].