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It leads to waste lots of money, to affect the normal transport security of vehicles and to shorten service life of secondary lining.
Test results Segregation property.
Furthermore, the inhomogeneous distribution of fibers in concrete will seriously affect the self-compacting performance of fresh concrete and the crack resistance of hardened concrete [5].
That means that the organic fibers are positive for obviously improving the anti-segregation property of fresh concretes.
It is clear shown in Table 1 that although mixtures of PVAF, PPF and PETF obviously decreasing the air voids content of concrete, the spacing factors and average chord lengths of concrete including these fibers are higher than 0.1mm.

The mechanical and corrosion properties of stainless steels welds are highly dependent on microstructure.
The heat input of laser beam welding is mainly affected by three different factors: absorption, laser power, and welding speed.
The heat affected zones were narrow in each cases.
Mechanical properties, microstructural stability and kinetics of σ phase formation in 29Cr-6Ni-2Mo-0.38N super duplex stainless steel.
Khourshid, T Sharef: Effect of Laser Beam Welding Parameters on Microstructure and Properties of Duplex Stainless Steel, Materials Sciences and Applications, 2011, 2, 1443-1451

Quality of prints and other printing products depends on many factors.
To the main factors that affect print quality, the optimization of printing process, as well as the use of printing high quality and the compatibility materials [1, 2] can be assigned.
Printouts change their physical properties (strength, surface roughness, friction, porosity) and elastic properties.
Wang, Advanced mechanical properties of graphene paper, J.
Skukis, Material properties identification.

Used the Solidedge to bulid the solid model of the Vertical Shaft Impact crusher’s rotor, then it is imported into Ansys for modal analysis, get the former twenty frequency and vibration model, through the twenty color vibration models and vibration animations attained from analysis, the rotor’s dynamic properties and weakness area could be detected directly, to set up the foundmental theory for the structure design.
Modal analysis based on vibration theory, the modal parameters of the analysis methods, based on the structure geometry, boundary conditions and material properties of the discrete structure, solved the structure of natural frequencies and mode shapes.
The Main Factors of Influence Wear The vertical shaft impact crusher rotor main role is to accelerate the material, its complex structure, there are three stream crossings, more ribs and multiple threaded holes.
Shotcrete hopper free mode of the simulation [J], mechanical and application .2006,19 (6) :10-11 [5] Li Min, Secretary General Huang, Pan Hongxia.
Mechanical Engineering and Automation .2004,10 (5) :10-13 [6] Tan plus the the Fucai Ming, Mao Wengui, Tan Lixin.

The single tool grains affect the workpiece surface during grinding in the separated areas of deformation.
The residual stress is an important factor in influencing usable properties of machine parts.
Introduction The volume of applied heat, intensity of mechanical load of ground surface and also the structural changes influence the intensity of residual stress.
The residual stress behaviour depends on all parameters of surface integrity and their mutual connection including material properties.
The above reached results were formed up by means of the national grant GA CR 101/09/0504 - Research of influence of finishing and progressive methods of machining on function properties of design notches in term possible catastrophic effects.

Measuring the cutting surface roughness of 1060 Aluminum Alloy by stereomicroscope and surfagauge, among the factor which can affect the surface roughness, the cutting traverse speed play a dominant role to control the surface roughness in the process of cutting.
Compared with machining, Electrical discharge machining (EDM) and Laser machining [8], there is no concentrated thermal stress in the process of AWJ machining, which will not change the mechanical properties and structural characteristics of the processing materials, and will not cause material deformation due to the existence of thermal stress [9].
Mechanical science and technology. 2011(3):457-462
Mechanical management and development. 2009,24(5):87-90
China Mechanical Engineering 1994, 5:8-10

But there are controversies over the HA properties of biological and mechanical prostheses.
The fixation between host tissues and substitute materials still belongs to the mechanical or morphological type.
The static friction factor is defined as resistance generated for the contact between the active tendency body and other body on the interface.
The static friction factors vary significantly among different materials.
The results of this paper demonstrate the affects of the stress distribution between bone and prosthesis with different biomechanical properties.

The most widely used Ti-based superalloys is Ti-6Al-4V which belongs to the α-β group because of its high strength properties at elevated temperature up to about 300ºC [1, 2].
Although titanium alloys have been classified as difficult-to-machined-material, its properties such as low thermal conductivity and strong affinity to tool materials can cause rapid tool failure and short tool life.
Previous researches on machining titanium [3, 4] had showed that the surface integrity of the machined surface components can be affected and resulting in reduction of the service life.
Beside the point angle, other factors also influence the surface finish or smoothness of the drilled holes such as different lip height, style of the drill point, helix angle and size of the margin and rigidity of the drill.
Another factor that influences the degree of deformation is the point angle of tools.

However，the properties such as high accuracy，excellent reoeatability and so on are not included in the advantages.
The quality factor is an important parameter for dynamics of the cantilever.
Summary We have discussed the static and dynamic properties of the mcrocantilever and the ways to improve the sensitivity of mcrocantilever.
Mechanical behavior of ultrathin microcantilever[J].
Mechanical quantity sensitive device and its application [M].

Cutting condition, simulation models and material properties of carbide cutting tool and workpiece are shown in Table 2.
Table 2: Cutting condition to the simulation models and material properties Tool geometry of DNMA 432 Side Cutting Edge Angle (SCEA), deg -3 Back Rack angle (BR), deg -5 Side Rack angle (SR), deg -5 Nose angle, deg 55 Tool properties (WC as base material, uncoated carbide tool) Modulus young (GPa) 650 Thermal expansion 5e-06 Poison ratio 0.25 Boundary condition Initial temperature, deg.
C 20 Shear friction factor 0.6 Heat transfer coefficient at the interface, N/s mmoC 45 Workpiece geometry Depth of cut, mm 0.3 Width of cut, mm 3.4 Length of workpiece, mm 7 Workpiece properties (Ductile cast iron FCD500) Modulus elasticity (GPa) 169 Thermal conductivity (W/m.
All of these results were also agreeable with the theory, because the change of clearance angle will not affect the cutting force and stress, but the increase of clearance angle only affects slightly on the wear rate.
Kalhori, in: Modelling and Simulation of Mechanical Cutting, Doctoral Thesis, Institutionen for Maskinteknik, Sweden (2001)