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- Strength and durability were also factors in the decision to employ Bamboo Fiber Reinforced Epoxy Composites (BRFEC) by Irwan, A.P., and I.W.
- Banana kenaf hybrid fiber composites' mechanical and physical properties were investigated by A.
We also used a "creep test" to see how relaxation stress affected the prosthesis. 3- Used an analytical solution to evaluate the mechanical properties with different reinforcement effects. 4- This review focused on natural fibers because they are so important and feature good mechanical properties.
McMahon, Lower Limb Mechanical Properties, Sport.
Hamad, Effect of Weathering on Some Mechanical Properties of Prosthetic Composites, Mater.

In the calculation of Ball Nose Milling Cutter Deformation Analysis, the tool is usually assumed to a cantilever, This paper mainly against the bending deformation of the ball head cutter in the x, y direction, establish generic milling force model using different processing material properties [6]: (1) is a general term to the milling force;is a coefficient that reflect material properties, cutting tools and machine;is a cutting speed;is Cutting width;is cutting depth;is the rate of feed; is undetermined coefficient.
The properties of tool diameter, tool number of teeth and other attributes are reflected in the milling force coefficient.
Using the cutting simulation function of the AdvantEdge software can simulate the cutting tool’s milling force, cutting heat and tool wear during the cutting process For solving equation (1) where have the undetermined coefficient, conduct a statistically orthogonal simulation, processing objects in accordance with the four factors,4 level orthogonal table.
Conclusion Through the study and analysis of influencing factors on spherical end milling force, established a cutting force model by using the AdvantEdge FEM simulation analysis software and conduct Orthogonal cutting simulation experiment method for analysis and numerical calculation. used XH715 processing center for experiments, the experimental results show that the simulation model can make the cutting force simulation accuracy of about 10%.
Mechanical science and technology, 2005, 24(3): 269-272.

Theory of the Removal Function The process of bonnet tool polishing, which is not just the mechanical cutting and chemistry, molecules have been moving on the being polished surface as well.
There are a lot of factors influencing the polishing effect, such as nature and granularity of abrasives, concentration and PH value of polishing slurry, internal pressure, velocity of bonnet, polishing materials and so on.
According to the relative velocity and the stress between the element and the tool, the amount of surface material removal △Z in the processing time t is obtained (1) Where P(x, y, t) is the pressure at point (x, y) and instantaneous t, V(x, y, t) is the relative velocity between the polishing tool and point (x, y) at instantaneous t, and K is a constant related to the material properties and other process parameters.
Bonnet and component contact problem is complex and affected by multiple factors, such as the bonnet radius, structure, material properties, and the precession angle.
And influences of the material properties and other process parameters boil down to a constant of proportionality K.

This part of the alloy material’ properties isn’t considered in this paper, and the uniform material of rotor is assumed.
The main property parameters in Table 1 are known.
In fact, the cooling water section is random-walking and no constraint in mechanical position.
The various factors that affect the fatigue limit relate to stress concentration, especially in the junction of power input shaft part and the disk where we can add circular bead transition and the stress concentration phenomenon will be ease greatly.
So that the failure situation of sections and the size of the safety factor will be judged directly.

Introduction Temperature non-uniformity distribution is a typical operating environment of the aero-engine rotor and such complex temperature environment would change the related material properties [1].
The above factors could affect the engine dynamic performance and breeding failure.
For the engine shaft also with complex properties, such as inertia, elasticity, heat scalability, and these properties are all affected by temperature environment obviously.
The complexity non-uniform distribution of the temperature field and the fast time-varying characteristics would change the properties of the shaft; thereby change the natural frequency of main rotor system.
Thus the complexity of the temperature environment is an important influencing factor of the failure and devastating accident of engine main rotor system, also as one of the worthy research problems in rotor dynamics and mechanical design [4-6].

DRX plays a key role in reducing the flow stress and the grain size and is a powerful tool for controlling mechanical properties during industrial processing [4].
In recent years, the influence factors for critical strain and the critical strain model have been widespread concerned [5].
The aim of this paper is to study the key factors which influence the grain size and the microstructure evolution during Cr4 steel hot deformation process by thermo-simulation experiments, and to determine the critical strain model which can provide basic data for designers to develop the hot forging process technique parameters of heavy supporting roller and control the microstructure of this product.
This machine can be programmed to simulate both the thermal and the mechanical industrial process variables for a wide range of hot deformation conditions.
During the hot forming process, the critical strain () is mainly affected by the temperature and strain rate, but also affected by the original grain size and hot deformation activation energy.

Introduction Metallic foams (cellular materials) and honeycombs are widely used due to their attractive mechanical and thermal properties.
It is also known that age of the foams can affect its thermal properties.
Their geometrical properties are listed in Table 1.
Geometrical properties of honeycomb structures.
By decreasing the intercellular wall thickness by factor 2 (decrease in relative density by 50 %) the heat transfer through the cellular structure is not significantly affected.

Study of Polysilicon Texture with Acidic Corroding Jianxiong Ye 1,a Fayun Zhang 2,b 1.Department of Mechanical and Power Engineering, Nanchang Institute of Technology，Nanchang Jiangxi Province，P.R.C 330029, China 2.
The aim of texture is to reduce light reflex so as to improve its optical properties; it is a fundamental work for solar cell energy conversion efficiency.
Texture morphology is observed with SEM and light reflex ration is detected by ultraviolet spectrophotometer (US). 1.2 orthogonal experiment scheme and experimental results As for polysilicon texture processed with isotropic acidic corroding, characters of it’s morphology and light reflex is affected by many factors, such as constituents of compound solution, reaction time and temperature, when the corroding speed is approximately 2 μm/min and corroding depth is about 4 or 5µm when temperature is kept in a constant value, the silicon cell performance can be more better and texture quality can be ensured to be more stable.
Table 1 Factor and Levels of Experiments Levels HNO3 [A/ml] HF[B/ml] NaH2PO4.2H2O [C/ml] 1 1 1 0 2 6 3 5 3 12 9 10 Table 2　Results of three factors and three levels in the orthogonal experiments Samples HNO3 HF NaH2PO4.2H2O Corroding speed [µm.min-1] Light reflex [％] 1 1 1 1 109 32.0 2 1 2 2 3.5 16.2 3 1 3 3 0.7 17.3 4 2 1 2 1.25 37.6 5 2 2 3 0.7 29.3 6 2 3 1 76 22.0 7 3 1 3 0.75 38.2 8 3 2 1 5 33.0 9 3 3 2 51.5 29.1 Original reflex rate of raw polysilicon chip is about 35%, it can be seen from table 2 that acid corroding can work properly and reduce reflex rate effectively, the lowest reflex rate in tests is 16.2%.
Application of artificial neural network in the study of material properties, Cailiao Daobao, Vol. 20(2006),p. 238-240,257 [8] Zhang wenxiu, Leug yee:Mathematical foundation of genetic algorithms, Xi’an : Xi’an JiaoTong University Press,2000

The mechanical properties of steel plate walls are similar to a vertical bottom-fixed cantilever which vertical border elements can be regarded as flanges, while embedded steel plate as web and horizontal borders element as stiffeners.
The mechanical properties of steel plate and concrete are listed in Table 1.
The ductility factors of three specimens are all no less than 3.0.
Table 3 Displacements and ductility factors of specimens Number of specimens Uy /mm Ud /mm θP μ＝Ud/Uy Relative value of μ + - Average + - Average Average Average Average SPSW-1 9.3 10.24 9.77 34.19 34.76 34.48 1/32 3.53 1.18 SPSW-2 11.7 9.39 10.55 32.65 30.65 31.65 1/35 3.00 1.00 SPSW-3 6.52 6.37 6.45 31.48 27.63 29.56 1/37 4.59 1.53 Hysteretic behavior.
The energy dissipation capability directly affects the seismic behavior of the walls.

The reclaimed sand can be obtained by the process of high-temperature baking followed by mechanical reclamation and separation of micro-powder.
Sand preparation, reclamation process and properties determinations were all conducted in laboratory.
At last, different types of chemical bonded sand were prepared using this reclaimed sand and detected their related properties.
Different types of reclaimed sand were obtained by the reclamation process of high-temperature baking followed by mechanical reclamation.
This factor maybe increase the acid demand value of reclaimed sand, and also the increased acid demand value maybe affect the technological properties of reclaimed sand.