Search results

They also use three-dimensional microstructure based model to simulate the overall elastic-plastic response and local damage mechanisms in composite materials[8].
In reality, the microstructure based model can accurately represent the aspect ratio, distribution and shape of the particle, and can thus be used to predict the mechanical properties of particle-reinforced composite materials accurately.
Material description and date processing.
Acknowledgements This work is supported by the Planned Science and Technology Project of Hunan Province (2010FJ3140), the Program for New Century Excellent Talents in University (NCET-10-0842) and Fundamental Research Funds for the Central Universities (2011JQ021).
Li, Microstructure-based simulation of plastic deformation behavior of SiC particle reinforced Al matrix composites, Chinese Journal of Aeronautics 22 (2009) 663-669

So, researching on solar battery, we should not only choose the reasonable illumination intensity, but consider other influence such as material, etc.
Acknowledgements This work was financially supported by the HeBei Natural Science Foundation (F2014208145) and Research Project Team of Shijiazhuang University (XJTD004).
Progress of silicon Solar Cell[J].Materials Review，2011,25(10):49-53
New Progress in Study of Organic Solar Cell Materials[J].
Chinese Journal of Organic Chemistry，2011,31(2):20-272

the static stress analysis of pipeline with frusta when collapse and gulch was occurred The steel pipeline[5] was studied that the material is X-70 steel, E =210Gpa, , Yield limit is MPa；ultimate strength is MPa , inner radius is m，outer radius is m, the buried depth is 1.6m, The selection of steel pipeline calculation model is like other structures [5], be based on true build object diagram, the few impact factors are abandoned in drawing calculating diagram.
From the results the following can be drawn ,that the pipeline with frusta material was entered the yield stage as the collapsed pipeline length L =28m, and then the pipeline was occurred in pipeline damage. similarly, in gully state, L =111m.
In the static calculation, pipeline collapsed length is L =28m, the material yield stage is entered, and then pipeline damage is occurred, so the L =28m should be more concerned about our study collapse failure length.
References [1] Xiaoli Li, Zhongping Li, Zhaolong Yin.Science Technology and Engineering , Vol. 10(2010), p.1517～1518, in chinese
International Journal for Numerical Method in Engineering, Vol. 14(1998), p.960～985 [4] Morris, N.F.The Use of Model Superposition In Nonlinear Dynamics.Computes& Structures.

(3) In Equation (3): depends on the contact object material and structure shape. .
,are Poisson's ratio of two contact objects materials., are modulus of elasticity of two contact objects materials.
Journal of Mechanisms.
Beijing: sciences press. 1997.

This material is also useful as a substrate for growth of gold and silver nanoparticles [6-7].
The EMM system is capable of determining local complex permittivity values for different materials by measuring the quality factor (Q-factor) and the resonant frequency shift of the resonant coaxial probe as the tip-sensor approaches the sample surface interacting with it by the evanescent wave.
For material that absorbs laser energy internally, the heat source is given by Eq. 2.
Ruiz, Efficient ITO–Si solar cells and power modules fabricated with a low temperature technology: Results and perspectives, Journal of Non-Crystalline Solid 354 (2008) 2472-2477
Oyama, Applied Surface Science, Attachment of gold nanoparticles onto indium tin oxide surfaces controlled by adding citrate ions in a seed-mediated growth method 253 (2006) 2933-2940

Fig. 7 The nodes of boundary between pile and soil The assembling of the calculation model of soil and pile body: Because the pile body and the soil are two different materials, the pile body is medium bearing loads, when building the model, this should be considered.
After combining the model of pile body units with model of soil units, according to the conditions of different medium, the characteristic of material is separately input, so it is formed that the computing model of the limited unit analysis about effects of pile and soil work together.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (51278224) References [1] Y.M.
Wang and X.SH.Yin, Advanced Material Research, Vols.152-154(2012), pp826-834 [2] Y.M.
Qian, CH.Y.Zou, X.SH.Yin, Journal of the Harbin Industrial University.

Introduction In recent years, along with the rising price of energy resources and the deteriorating environment, government, research units and commercial institutions have spared no effort to invest a large amount of manpower, material and financial resources to research environmentally-friendly energy.
After completing Li-ion battery manufacturing, it can only be normally used through activating the anode and cathode material by the charging and discharging process.
Acknowledgement This work is supported by the Science-Technology Supporting Scheme of Jiangsu Province, Project No.
Corresponding Author Name: Liang Han E-mail: melhan@seu.edu.cn Tel: +86 - 25 - 52090502 ext. 8436 Reference [1] QuWeiping, Lithium battery development overview [J], Urban Vehicles, 2009, 5:51 [2] Zhou Henghui, CiYunhang, Liu Changyan,Research of electrode material of lithium battery [J], Progress In Chemistry, 1998, 14(1):85-94 [3] Huang Kun, Research of Lithium Ion Secondary Battery Technology [J], Battery Bimonthly, 2000, 30(5):217 [4] Jin Minggang, Development of Solid State Li-ion Battery Industry in China [J], Chinese Battery Industry, 2000, 5(2):88 [5] Zhou Jianjun, Li Lin etc., Lithium ion battery diaphragm of present situation and the development tendency [J], Advanced Materials Industry, 2008, 4:33 [6] Wu Yuping, Zhang Hanping, Wu Feng etc., Polymer lithium ion battery [M], Beijing: Chemical Industry Press, 2007.306 [7] Zhang Yong, Yan Shaowei etc., Design Of intellective test and dissolving system about rechargeable lithium battery [J].
Chinese Journal of Scientific Instrument, 2006, 27(6), 357-358 [8] Lu Guimei, XieQiu etc., Lithium ion battery into technology research [J], Chemical Engineering & Equipment, 2011, (9): 46-47 [9] Peled E.

Modeling of Tool for Cold Extrusion of Steel and Tooling with Proportional Bandaging Alla Gerasimovaa*, Sergey Gorbatyukb, Dmitry Efremovc National University of Science and Technology "MISIS", Moscow, Russia aallochka@rambler.ru, bsgor02@mail.ru,cdefremov@list.ru Keywords: cold stamping, modeling, variable stress, rim, tooling, matrix, pressure.
Metal molding without destroying its integrity allows increasing the utilization rate of the material up to 95% even for parts of complex configuration.
In the process of metalworking, the material is hardened and its plasticity decreases.
Bibikov, Assessing Parameters of the Accelerator Disk of a Centrifugal Mill Taking into Account Features of Particle Motion on the Disk Surface, Journal of Friction and Wear, 39 (4) (2018) 326-329
Chichenev, Designing lines for the production of composite materials based on the object-oriented approach, Heavy Engineering, 6 (1999) 16-20

It is mainly consisted of four column press, lower pressure head group (driven by a stepping motor and reducer), upper pressure head group (driven by parallel hydraulic cylinder), push-pull die mechanism, in-out material mechanism, look-out material mechanism, three-dimensional laser measurement device, automatic adjustment system, hydraulic system, control and computing system.
Finite Element Numerical Simulation Sheet metal forming is a nonlinear and variable dynamic contact problems and numerous factors is taken in such as material properties and dimensions, friction, shape and cold pressing path.
The material parameters are decided according to test and calculation showed in table 1.
Table 1 Sheet material parameters modulus of elasticity E0/MPa tangent modulus Et/MPa yield stress σy/MPa Poisson's ratio μ Density ρ/kg·m-3 2.06×105 2.0×104 355 0.3 7.85×103 Prediction model based on  neural network  BP neural network model about spingback is realized in Matlab neural network toolbox which includes the following main points[5]. 1) The design network topological structure.
Journal of Wuhan University of Technology (Transportation Science & Engineering) ,2010.34(3):431-434 [3]Li Shuang-yin.Study of springback for ship hull plate in cold forming[D].

A Method of the Inverse Evaluation for Heat Transfer Coefficient Between Al-Cu Alloys and Cooling Water Zhonglin Hou1,a,Ting Li2,b,Jun Qiao1,c and Shengli Li1,d 1 School of Materials Science and Engineering, University of Science and Technology Liaoning, Anshan ,114044, China 2 School of High-temperature Materials Science and Magnesium Resources, University of Science and Technology Liaoning, Anshan ,114044, China adlut_kyo@sina.com.cn, bkd_liting@sohu.com, cjunqiao@163.com, dlishengli66@sohu.com Keywords: Al-Cu Alloys, Heat Transfer Coefficient, Heat Flux, Inverse Simulation Evaluation.
(2) λ-coefficient of heat conductivity(W/m·k), ρ-density of material(kg/m3), Cp-specific heat(J/kg·K)，qv-latent heat of phase change(J/kg)，t-time(s)，T-temperature()，(r，φ)-coordinates in column coordinate system.
Controlled interfacial temperature ranging from 200 to 225°C gave the best heat flux transfer References [1] Osman A M, Beck J V: Journal of Heat Transfer Vol.112(1990) , p.843－848 [2] S Sjostrom:Materials Science and Technology Vol.1(1985) , p.823－827 [3] Taler J, Zima W:Heat and Mass Transfer Vol.42(1999) , p.1123－1140 [4] Chantasiriwan S: Heat and Mass Transfer Vol.42(2000) , p.4275－4285 [5] GU Jian-feng, PAN Jian-sheng:Hot Working Technology Vol.5(1998) , p.13－14 “in Chinese” [6] SHI Hong-jun, YANG Ge-tao, ZHANG Heng-hua: Special Casting & No ferrous Alloys Vol.25(2005) , p.28－530 “in Chinese” [7] YAO Xin, GU Jian-feng, HU Ming-juan: Heat Treatment of Meals Vol.28(2003) , p.33－37 “in Chinese” [8] Naylor D,Oschuizen P H: ASME(1993) , p.125 [9] Hernandez-Morales B,Brimacombe J K,Hawbolt E B: ASME(1995) , p.559