Search results

Research on Erosion Mechanical Parameters of Wind-Sand Environmentin the Central and Western Region of Inner Mongolia Hao Yunhong 1,a, He Peiyuan1,b and Wu Anli 1,c 1School of Civil Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia , 010051, China ahaoyunhong_hyh@163.com, bhepeiyuan3504@163.com, cwuanli139@163.com Keywords: Wind-Sand environment; erosion; mechanical parameters Abstract.
The central and western region of Inner Mongolia is a high activity area of sandstorm in northern China, the infrastructures in this region have been long-time eroded by wind-sand environment, those durability and safety have been seriously affected.
Grade of the sandstorm strength Strength grade Maximum wind speed/m·s-1 Minimum visibility Very strong ≥25m/s 0-grade 0～50m strong ≥20m/s 1-grade 50～200m middle ≥17m/s 2-grade 200～500m Weak ≥10m/s 3-grade 500～1000m The Erosion Mechanical Parameters of Sandstorms (1)Sand particles Characteristics Sand particles characteristics are an important factor that affects sandstorm intensity.
Table.3 The grade of wind-speed Wind grade Wind speed range Average wind speed 4 5.6～8.0 7 5 8.1～10.8 9 6 10.9～13.9 12 7 14.0～17.2 16 8 17.3～20.8 19 9 20.9～24.8 23 10 24.9～28.8 26 11 28.9～33.6 31 12 33.7～38.6 35 (3)Dust concentration Dust concentration is an important factor that affects sandstorm intensity, it is an important parameter that measure the sand amount of sandstorms.
Research on the Mechanical-Properties of Flexible Surface material by Erosion in Sandstorm Environment.

Authors study to find out factors affecting CBN performance in turning with CBN to obtain less than Ra 0.4 surface roughness.
Introduction Steel is still popular in mechanical industry due to its mechanical properties; it is tough and erosion resistant.
Good quality on the part’s surface can be varied from different factors during shearing process.
There was also the study of other influential factors on cutting process, such as cutting speed (mm/rev), feed (mm/min) and depth of cut (mm) which could affect the chip, compression, erosion and surface roughness [7].
The main purpose of this research is to study the influential factors on CBN insert, focusing on the cutting edge shape adjustment when turning the JIS-S45C steel at 0, 5, 10, 15, 20 and 25 µm.

Rib depth with different rib form is also the key factors affecting the bonding between concrete.
Through research on several different rib surface form and deep tensile properties of GFRP bar materials, different rib depth effect on the tensile properties of GFRP bar material was got.
Wang, Study of GFRP Bar's Mechanical Properties in Compression, Journal of Shenyang Jianzhu University, Vol. 27 6 (2011) 1037-1042
[8] GB/T13096.1-91, Test Method for Tensile Properties of Glass Fiber Reinforced Plastic Rod, China Building Industry Press, Beijing, 1991
Li, The research of method and design parameters of mechanical properties tests.

The medium is initially modeled with cross-anisotropic mechanical and thermal properties.
Based on numerical results, the thermal stresses, displacements and temperature change of the thermoelastic half space are significantly affected by the anisotropy of mechanical and thermal properties of the strata.
Both thermal flow and mechanical properties are assumed to be cross-anisotropic.
In these equations, and represent the thermal expansion factors along and normal to the symmetric plane, respectively.
Based on the numerical results, the thermal stresses of strata are compressive, and they are significantly affected by the ratio of mechanical and thermal properties , and .

Viscosity of LRI is one of the important factors affecting fluid velocity, the impregnating velocity of resin in dry mat is in inverse proportion to the viscosity.
Viscosity is one of the important factors affecting fluid velocity, the impregnating velocity of resin in dry mat is in inverse proportion to the viscosity.
This dry spot is the one of the main weaken source of mechanical property.
Therefore, it should be considered for viscosity properties of resin to optimize mold process [5-7].
Fig. 4 Impregnation area(a) and speed(b) on resin temparature Viscosity in resin filing process is one of the important factors to affect flow velocity and the rate for resin to impregnate in Dray mat is in inverse propotion to viscosity.

Mechanical Properties of Ultrafine Grained Steels Processed by Large Strain-High Z Deformation-A Review S.V.S.
a susarla.murty@gmail.com, btorizuka.shiro@nims.go.jp Keywords: Ultrafine Grained Steel, Large Strain Deformation, Mechanical Properties, Ductility, Strength, fatigue properties Abstract.
Mechanical Properties of ultrafine grained steels Strength Properties It may be noted that one of the key differences between the earlier [36,37] and present works probing in to the effect of grain size on the mechanical properties of materials is the difference in the microstructure of the materials under comparison at different length scales.
It is known that the grain size is one of the major factors determining the cleavage fracture unit [43].
Fatigue properties Fatigue strength is one of the key properties that permit the practical use of ultrafine grained steels, since it is a frequently required characteristic of mechanical components.

The mechanical properties of three alloys including two β and one α+β are presented, particularly the characteristic of β alloy differing from that of α+β alloy.
In this paper, the mechanical properties of these two β alloys are presented comparing with that of α+β alloy.
Mechanical properties Mechanical properties are listed in Table 1.
Superplastic characteristics are also affected by the other factors like temperature, strain rate, initial grain size etc.
Conclusion The mechanical properties of two β titanium alloys have been compared with α+β alloy.

Microstructure evolution and Mechanical properties of Mg Alloy AZ31D Processed by Equal Channel Angular Extrusion Y.S.
The processing temperature and the passes of extrusion are important factors to affect the microstructure and mechanical properties of the magnesium alloy during ECAE.
Mechanical Properties.
Mechanical properties of ECAE processed material are listed in table 2.
The mechanical properties are changed impressively after ECAE and the finer grain group shows higher ductility.

Effect of Squeeze Pressure on Microstructure, Aging and Mechanical Properties of A357/ ZrO2 Composite M.
The compression properties have been evaluated and compared.
The age-hardening response is significantly influenced by many factors, such as foundry conditions and heat treatment variables [11].
The effects of increasing squeeze pressure (25, 50 MPa) on microstructure, soundness, aging behavior and mechanical properties were examined.
Load transfer is the major mechanism affecting the strength of the composite.

China afangfei@ahut.edu.cn, bheyizhu@ahut.edu.cn Keywords: Welding Thermal Cycle; Heat Affected Zone Hardening; Screw Thread Steel.
The hardening behavior of the welding heat affected zone (HAZ) with different heat input for 500MPa grade screw thread steel is investigated in this paper.
In coarse grain region of HAZ, coarsening of austenite grain is the reason of local brittleness of welded joint, which also make a different property between HAZ and base material.
The welding thermal simulation experiments are carried out for single thermal cycle using Gleeble-3500 thermal-mechanical simulator.
The slop of relative hardness factor is higher as the heat input is lower.