Search results

The used wheel is a kind of complex anisotropic materials with heterogeneous phases, and the material’s properties at each points in the wheel vary with temperature.
Thermal and physical properties of bronze and diamond [6] Properties Material Bronze Diamond Density ρ/(kg·m-3) Thermal conductivity λ/(W·m-1·K-1) Specific heat С/(J·kg-1·K-1) Melting point T0/(K) Latent heat of vaporization T1/(K) absorptivity А（YAG laser） 8620 41.9 352 1173 2770 0.38 3515 2000 1827 ---- 3973 0.20 The metal-bonded diamond wheels (1A1 /T2 150× 10×32×5MBD 70/80) were adopted in the experiments, and the bronze bond was used.
Table 2 lists the thermal and physical properties of the bond and the thermophysical characteristics of the diamond abrasives.
Thus, it can be concluded that, without regard to the effects induced by the measuring error of experimental instrument, as long as the finite element meshes can be appropriately generated during the simulation modeling, various influencing factors of temperature field can be accurately dealt with.
Chinese Journal of Mechanical Engineering, 2007, 43(7):93-98

After the adequate mastery of the soil layer structure, the physical and mechanical properties and the determination of the calculation parameters, the engineering software of FLAC3D and the numerical analysis method are utilized to analyze the integral stability of the tailing dam of Guangxi Xinfa Aluminum Company in Jingxi county.
The main of factors that affecting the stability of tailing dam is dam slope ratio of dam , materials of dam, buried depth of the foundation of tailings dam, mechanical parameters of the pond mud and the hydrogeological conditions[1].
The sort of rock and soil is more ,the properties change greatly.
Numerical simulation of the stability of the dam of tailing pond When the dam of the tailing pond is built in stone, the factors which influence the stability of the dam are singly slope rate, thickness of dam body, the depth of dam foundation etc.The theory of plane strain is used in the process of the numerical simulation and different depth of the dam and slope rate is considered.

The Study on Surface Defects on the Machined Surface in High Speed Milling of Sicp/Al Composites Zhou Ming 1, a, Wang Yangjun1, 2, b and Jin Xiang yang2 1School of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin 150001, P.R. of China 2 School of Light Industry, Harbin University of Commerce, Harbin 150028, P.R.
Introduction Mechanical and physical properties of particle reinforced metal matrix composites such as high specific strength, stiffness and wear resistance indicate that these materials play an important role in application for aerospace and automotive engineering components.
The results showed that the cutting speed and feed rate were considered to be main affecting factors and the machined surface is not totally formed by the cutting tool.
Table 1 Machining conditions used in the experiment vc(mm/min) fz(mm/z) ap(mm) 150 0.01 0.05 150 0.05 0.01 150 0.1 0.1 300 0.01 0.1 300 0.05 0.05 300 0.1 0.01 450 0.01 0.01 450 0.05 0.1 450 0.1 0.05 Table 2 Factors and levels of cutting parameters Factors Levels 1 2 3 A: fz（mm/z） 0.01 0.05 0.1 B: vc（m/min） 150 300 450 C :ap（mm） 0.01 0.05 0.1 The types and formation mechanisms of the surface defects The superficial holes formed by the pulled-out Particle.
(3) The cutting speed is the dominant factors affecting the number of pulled-out particles.

Consolação 896, 01302-907 - Sao Paulo, Brazil ajgcarrio@mackenzie.br Keywords: Composites, Cu-Ni-Ag/Y2O3, Rietveld Method, electrical and thermal properties, synchrotron radiation.
Structural and electrical properties of the anode materials determine the long-term performance of fuel cells.
High electrical conductivity and high activity of electrochemical reactions and hydrocarbon fuel reforming are the fundamental properties of these materials.
The cell parameters and profile refinements indicate that the thermal and mechanical treatments affect the copper crystalline structure, causing internal strengths.
Withers, Cambridge solid state science series, Cambridge University Press 1993, ISBN 0-521-41808-9 [3] Materials Science and Engineering A, Volume 277, Issues 1-2, 31 January 2000, Pages 297-304, Microstructure and mechanical properties of magnesium containing high volume fractions of yttria dispersoids, B.

The main factors that affect the fatigue properties of prestressed concrete test beams were fully discussed.
Material Properties.
The HRBF500 steel bars used in the specimens were tested in the laboratory and their mechanical properties were shown in Tab. 2.
The main factors affecting the deflection increase are discussed as follows: (1) Fatigue loading cycles N The deflection increased continuously as the number of fatigue cycles N increased.
(5) The initial tensile reinforcement stress produced by the maximum fatigue load, stress range, prestress degree, and steel ratio were the main factors that affected the fatigue properties of partially prestressed concrete beams.

Figure 1 shows the critical factors inducing the TBC failure in relation to the temperature and duration time regimes.
Both thermo- mechanical; creep and/or fatigue along with thermo-mechanical fatigue (TMF), and thermo-chemical factors; oxidation and/or corrosion, should concern strongly and simultaneously to the TBC system failure.
Furthermore, Figure 2 shows the schematic illustration summarizing a variety of the affecting factors and failure morphologies likely to experience in the plasma sprayed TBC systems [4].
Hence, there is required for the highly corrosion-resistant Ni-base superalloys with an appropriate strengthening mechanism by such as γ’ [Ni3(Al, Ti)] or TCP Laves phase, from the viewpoint of assuring the high-temperature mechanical properties such as creep and/or fatigue.
Fig. 2 Schematic illustration summarizing different kinds of the affecting factors and failure morphologies likely to experience in the plasma sprayed TBC systems.

This sample was being utilised to analyse the parameters affecting the quality of plastic products, which were warpage and shrinkage.
One of the software is CadMould 3D-F and this project will use this software to prove that CAE is a very useful tool to analyse the main parameter that affecting the quality of injected plastic products, especially integral hinges made from Polypropylene.
By studying the effect of individual factors on the results; the best factor combination can be determined [2].
The next step is to utilize the S/N Ratio and ANOVA approach to identify significant factors.
From the analysis the higher percentages pure sum of factor, the more affects these factors to the samples or product.

The numerical stimulation results showed that above three factors significantly affected the power generation output and generation stability.
Thus, the optimization of the three factors was achieved in this paper, which provides the basis for the solar chimney heat storage system design.
Based on the law of conservation of energy and the system heat transfer flow mechanism, Mullett[7] established a complete mathematical model of the overall efficiency of the solar chimney power plant system, and analyzed the main factors that affect the system efficiency.
Ming[21] presented a unsteady numerical simulation analysis of the effects of various parameters, such as storage medium properties, the temperature difference between day and night, on power generation performance of the system.
So, both of the two factors should be taken into account in practical project.

Asymmetric meshing affects predicted buckling load, buckling mode shape and post-buckling behaviour.
Asymmetric meshing affects only the stiffness matrix K and does not affect the loading vector F in F = Kx relationship.
The cylindrical shell has lay-up orientations as [0o/45o/-45o/0o] and mechanical properties of CFRP are: Elastic modulus E11=52000 N/mm2, Elastic modulus E22=52000 N/mm2, Shear modulus G12=2350 N/mm2, Poisson’s ratio n12=0.302.
Palmer, Paradoxical buckling behaviour of a thin cylindrical shell under axial compression, International Journal of Mechanical Sciences, 42 (2000) 843-865
Calladine, Buckling of thin cylindrical shells: an attempt to resolve a paradox, International Journal of Mechanical Sciences, 44 (2002) 1583-1601.

The development of embedded solid lubricant materials As how to choose embedded solid lubricant materials according to the specific conditions, various factors of metallic matrix and mating materials should be considered.
On the base of Sang,s, J.Michalski et al.[13]found that the physical properties of this material was largely dependent on its preforms.
N.A.Bushe et al.[14] found that the tribological properties of this material depended on the lubricating film squeezed out and spread over to the interface during sliding process.
The shapes of the wear debris generated by the PMI-A under different temperature are different, The viscoelastic behavior of the polymer affects the friction and wear properties of the PMI-A.
In 2010, Ze Wu et al.[31] did a systematic study about the friction and wear properties of different pore sizes, pore spacing, the hole depth and sizes parameters and obtained optimized wear properties to the surface of microporous structure parameters.