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Factors Affecting Fatigue crack growth in FS Welded aluminum 2xxx alloys.
The difference in mechanical properties of different joining processes is presented in Table 1-3.
A number of factors affect the size and distribution of different zones in the weld and consequently affect the fatigue crack rate in the joint.
The fatigue properties of FSW joints are largely influences factors such as process parameters, weld-joint orientation and design, stress ratio, residual stresses, test environment and post weld treatments etc.
Residual stresses and heterogeneous microstructure have been found to be the principal factors that affect the FCG properties as they cannot be avoided despite maximum control of other parameters.

In the present work, FRP laminates of glass/PP fabricated by film stacking method are studied for various mechanical properties.
Damping property of the laminate is affected by increasing fibre volume fraction.
Conclusion In this study, effect of fibre volume fraction on mechanical and dynamic mechanical properties of FRTP laminates fabricated by film stacking method is investigated.
Dynamic mechanical properties of GF/PP laminates are mainly dependent on the volume fraction of the fibre.
K.Nayak, Dynamic mechanical and thermal Properties of MAPE treated jute/HDPE composites.

Here we use ACADS examination questions 1(a)，is a two-dimensional homogeneous slope, material properties as Table 1 , The ultimately recommended answer of the examination question is safety factor of 1.00.
Table 1 Physical and mechanical properties of soil Physical and mechanical parameters Cohesion Internal friction angle Density Modulus of elasticity Poisson's ratio Value 2000 19.6 20 1.0e4 0.25 Fast Lagrange analysis method to determine slope stability factor A.Computing model The coordinate system of calculation as the X axis horizontal, Y-axis vertical, the horizontal distance of 50m, the vertical distance of 20m; using Mohr-Coulomb constitutive model；As the axial deformation can be ignored, so the calculation is a plane strain problem；Boundary conditions：Left and right side for the direction X, the bottom for X＆Y；Grid: direction X is divided into 50 grid, direction Y is divided into 20 grid.
In order to facilitate comparative analysis, fill the safety factors under different pore water pressure in Table 2.
From this example we can found that the affecting of pore water pressure on slope safety factor has a bottleneck, If the pore water pressure break through this bottleneck value, then the slope safety factor will rapidly reducing.
(2) I also calculate the safety factor under different pore water pressure of other typical slope，the results are all correspond with (1)，but the bottleneck values are not same，bottleneck value have a great relationship with the physical and mechanical parameters, height and angle of the slope and other factors of soil.

Surface Modification of Diamond to Improve Machining Properties of Ultraviolet-curing Wire Saw W.Peng 1, a, F.Q.Liu 2, b and C.Y.Yao1, c 1 The MOE Key Laboratory of Mechanical Manufacture and Automation, Zhejiang University of Technology, Hangzhou 310032, China 2 Zhejiang University of Technology, Hangzhou 310032, China a hz.pengwei@163.com, blylfq@sina.com, cyaocy@hotmail.com Keywords: Diamond, Surface modification, Ultraviolet-curing wire saw, Machining property Abstract.
The interfacial bonding strength between ultraviolet-curing resin and diamond is a key factor affecting tool properties in manufacturing of ultraviolet-curing wire saw.
The experimental results prove that the machining properties and service life of ultraviolet-curing wire saw can be improved by surface modification of diamond.
The slicing function of diamond embedded in resin bond performs by means of its retention which is a key factor affecting the performance of wire saw such as slicing efficiency and service life.
Finally, the effects of the diamond surface modifications on machining properties were discussed.

Effects of various welding technologies on mechanical and fracture properties were studied.
Effect of elevated operating temperature on material properties was evaluated, too.
The nominal chemical composition of the steel 10GN2MFA is listed in Table 1 and required mechanical properties at room temperature and at 350 °C are summarized in Table 2 including impact toughness at +10 °C and also transition temperature TK0.
Although the same tempered bainitic structure, very similar width of HAZ as well as good mechanical and also unconventional properties were observed in all weld joints, the highest mechanical strength was achieved in Weld 3.
Resistance of 10GN2MFA-A Low Alloy Steel to Stress Corrosion Cracking in High Temperature Water, Nuclear Power - Control, Reliability and Human Factors, Dr.

This phenomenon can be explained by two main influencing factors.
The force affecting the material during rotary swaging consists of two individual components, axial and radial [29].
Rao, Mechanical properties of Aluminum-Copper(p) composite metallic materials, J.
Macháčková, Sub-structure and mechanical properties of twist channel angular pressed aluminium, Mater.
Macháčková, Sub-structure and mechanical properties of twist channel angular pressed aluminium, Mater.

Influencing Factors on the Output of Coal Fines There are static factors and dynamic factors summarized on the basis of the division of coal fines, as Fig.1 shows.
Static factors Dynamic factors Output influencing factors of coal fines Drilling engineering Reservoir reconstruction Drainage Coal petrography Coal structure Coal seam Fig 1 Output influencing factors of coal fines The Characteristics of Coal Petrography.
Due to the mechanical properties of the coal which has a low Young's modulus and a high Poisson's ratio, coal could deform at lower temperatures and weaker tectonic stress.
The mechanical properties of coal depend on its material composition, coal rank, and water saturation.
Macroscopic type of coal can reflect the material composition of the coal to a certain extent, and different lithotypes have different mechanical properties.

CNT is a considered as the strongest and most resilient material known in additional to astonishing mechanical properties, Eltaher et al. [1].
Defects such as pentagons, heptagons, vacancies, or dopant are found to modify drastically the mechanical, electrical and chemical properties of these nano systems.
It is also noted that, the length and vacancy defect will affect on the modal participation factors and hence on vibrational modes.
Forro, W., Benoit, , & L., Zuppiroli, “Mechanical properties of carbon nanotubes”, Applied Physics A, 69(3), (1999), pp. 255-260
H., Esbati, & S., Irani, “Probabilistic mechanical properties and reliability of carbon nanotubes”, Archives of Civil and Mechanical Engineering, 18(2), (2018), 532-545

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 physical and mechanical properties of the boards were assessed.
Three factors namely grapevine-cement ratio, water-cement ratio and particle size were applied in this study for the board manufacturing.
Table 2 Variable factors Grapevine:cement Water:cement Particle size[mesh] 1:5 7:20 >9 3:10 9:20 9-20 2:5 11:20 20-80 Results and Discussion Hydration Test The results obtained from the hydration test are shown in Table 3.
The physical and mechanical strength properties of the boards were affected by the grapevine-cement and water-cement ratios.
Kakaras, Mechanical and physical properties of cement-bonded OSB, Holz Roh- Werkst. 64(2006)517-518