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Online since: February 2014
Authors: Yi Du, Ling Ying Kong, Chao Jun Yang, Yue Hua Zhou, Xiao Ping Chen
Before the transient electromagnetic field is simulated by two-dimensional finite element analysis, there are several steps to be done first, including defining the material property and boundary conditions, and motivating load, setting solving parameters and so on[5].
The induced current density of conductor region is the maximum, this is because the material of conductor is copper and the conductivity of copper is the maximum compared with other materials.
Because the material of pole-pieces is silicon and the conductivity of silicon is small and the permeability is good, the value of induced eddy current by cutting magnetic lines is small.
Acknowledgements The authors are grateful for the support provided by National Natural Science Foundation of China (No. 51075189) and Natural Science Foundation of Jiangsu Province (BK20131254).
Journal of Jiangsu University (Natural Science Edition), 2009,31(1):68-71
Online since: June 2012
Authors: Yi Qun Wang, Gang Chen, Yang Yang
These include the material thickness change, hardness change, tensile force fluctuation and rolling speed fluctuation, etc.
Aknowledgement This article is supported by Hebei Province natural science fund E2009000405 and E2010001163.
Simulation of effect of roll eccentricity on rolled material thickness[J] .
Advanced Materials Research, 2011, 143:148-151
Academic Journal of Beijing University of Science and Technology. 2005,27(6):728:731
Online since: December 2012
Authors: Xin Xiong, Hui Ming Bao
According to the geotechnical Engineering investigation report[3] under the proposed tunnel, with its engineering geological characteristics, the simulation analysis to select the surrounding rock physical and mechanical indexes is shown in Table 1, the mechanical parameters of the liner supporting building materials is shown in Table 2 .
Table 1 The physical and mechanical indexes of the different surrounding rock surrounding rock grade Weight γ(KN/M3) Elastic reaction coefficient(MPa/m) Deformation modulus(Gpa) Poisson's ratio Internal friction angleφ Cohesion the Calculate friction angle II 26 1500 26.5 0.225 55 1.8 74 III 24 850 13 0.275 44.5 1.1 65 IV 21.5 350 3.7 0.325 33 0.45 55 V 18.5 150 1.5 0.4 23.5 0.125 45 Table 2 The mechanical parameters of supporting Building materials γ(KN/M3) Ec(Gpa) Ro(Mpa) Rf(Mpa) Poisson's ratio InjectionC25 22 23 ≥15 1.3 0.2 φ22 Anchor 77 210 — — 0.25 C35 Concrete 25 31.5 25.7 2.4 0.2 Establishment of the model.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (projects, No. 50868003) and National Natural Science Foundation of Guangxi (projects, No. 2010GXNSFA013035).
Fu Helin,Guo Li, Science press, Beijing, China, 2009, p47-66
Zhou Dingheng, Qu Haifeng, Cai Yongchang, Cao Liqiao, Yang Hongwei, Chinese Journal of Rock Mechanics and Engineering, Vol.28, No.9. 2009, p1773~1782
Online since: September 2006
Authors: Mustafa Koçak, Funda S. Bayraktar, Andreas Schreyer, Peter Staron
Webster, Materials Science and Engineering, Vol.
Lu, Materials Science and Engineering, Vol.
Vöhringer, Materials Science and Engineering, Vol. 61, p. 43-50, 1983
Winholtz, Materials Science and Engineering, Vol.
Wright, Materials Science and Engineering, Vol.
Online since: February 2014
Authors: Jen Ching Huang, Fu Jen Cheng
Therefore, a lot of researches hve been devoted to the understanding of nanocutting phenomena for single crystal materials [2-4].
In this study, the potentials applied throughout the entire simulation process were divided into interaction within the diamond tool, within the copper workpiece, between the diamond tool and the copper material, and between the gas atom, diamond tool and the copper material.
Under the assumption that the material is homogenous, this method calculates the stress for each atom.
Acknowledgement The authors would like to give special thanks to the National Science Council, Taiwan, R.O.C. for the financial support through the Contract No.
Canadian Journal of Physics, 1971 49 2160-2180
Online since: January 2008
Authors: Hideo Nakajima, Shunkichi Ueno, Li Ming Lin
Ltd.) and sodium hydrogen carbonate powders were used as starting materials for preparing feed rods.
Acknowledgements This work was supported by the Grant-in-Aid for Scientific Research (C) (No. 18560655) by the Japan Society for the Promotion of Science.
The compressive test was performed at Tokyo Institute of Technology on Collaborative Research Project of Materials and Structure Laboratory.
Nanko, in: Porous Materials: Process Technology and Applications, (Materials Technology Series, Kluwer Academic Publishers, 1998)
Nakajima: submitted to Journal of the Ceramics Society of Jpn.
Online since: May 2004
Authors: F. Jorge Lino, Rui J.L. Neto, Pedro V. Vasconcelos, Paula Henrique
Polymeric materials present mechanical and thermal limitations that disable their use in the mould manufacturing.
Nevertheless, an adequate selection of the polymeric matrix and the dispersed materials allows the possibility to achieve performances closer to the metals and their alloys.
These new materials are attractive solutions for applications that have less demanding mechanical properties, as is the case of the rapid tooling applications where a small number of parts are required.
Neto: Materials Science Forum (2003), p.169
Barthes-Labrousse: Journal of.
Online since: April 2014
Authors: Zdenĕk Jonšta, Miriam Gabčová, František Jandoš, Roman Heide, Irena Vlčková, Petr Jonšta
Evaluation of Degradation Causes of the Forged Rotors made of NiCrMo Steel Grade Petr Jonšta1, a, Roman Heide2, b, Irena Vlčková3, c, Miriam Gabčová1, d, Zdeněk Jonšta1, e and František Jandoš4, f 1VŠB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic 2VÍTKOVICE HEAVY MACHINERY a.s., Ruská 2887/101, Vítkovice, 703 00 Ostrava, Czech Republic 3RMTSC, MATERIAL & METALLURGICAL RESEARCH Ltd., Ostrava, remote site VÚHŽ a.s., 739 51 Dobrá, Czech Republic 4PILSEN STEEL s.r.o., Tylova 1/57, 316 00 Plzeň, Czech Republic apetr.jonsta@vsb.cz, broman.heide@vitkovice.cz, cvlckova@vuhz.cz, dmiriam.gabcova@tskhts.sk, ezdenek.jonsta@vsb.cz, ffrantisek.jandos@pilsensteel.cz Keywords: micro-purity, quality of steel, degradation, metallographic and electron-microscopic analysis Abstract.
Material and Experimental Technique Metallographic and electron-microscopic analysis, including X-ray micro-analysis were performed on material of degraded rotor made from the steel, the chemical composition of which is given in the Table 1.
Fig. 7 Trans-crystalline brittle cleavage Fig. 8 Defects on fracture area Conclusions The paper presents detailed material and engineering analysis of tangible ingots, especially focused on relation between purity of NiCrMoV steel grade being studied and explaining the causes of degradation of the forged rotor.
Acknowledgements This paper was created within the project No CZ.1.05/2.1.00/01.0040 “Regional Materials Science and Technology Centre” within the frame of the operation programme “Research and Development for Innovations” financed by the Structural Funds and from the state budget of the Czech Republic.
Mazanec, Evaluation of Influence of Residual Non-Ferrous Metals on Structural Mechanical Properties of Steels (in Czech), Metallurgical Journal 2 (1998) 19-23
Online since: September 2013
Authors: Li Bo Ding, Jiang Rui, Jun Tao Li
Introduction As a new type functional nano-materials,nano-ZnO has been widely used in many fields[1-3].
Nano-materials have many properties which different from other conventional materials due to its unique small size effect and surface effect[4],however,it causes great difficulties of dispersion,so surface modification for it must be done to improve the compatibility and adhesive force between the two particles of composite.
Solid and soft nanostructured materials : Fundamentals and applications [J ] .
Microelectronics Journal ,2005 (7) :940 - 949
Study on antibacterial property of nano-ZnO/PP composite[J].Plastics Science and Technology,2005,165(1) :28- 30
Online since: June 2011
Authors: Jun Liu, Cheng Mao Li
So, we can use the Maya editor, Polygon editing method, MURBS Curves and Surfaces, Model creation techniques, Lighting and rendering, Material Set, Titles commonly used materials and animation settings to produce the material which we need.
Then we imported the material into AE to make synthesis and for more color and synthesis, and to do special effects.
Material, Map Material [4] provides visual elements.
Jiangsu Technical Teachers journal (Natural Science) 2009-01 [3] Tom Meade Shinsaku Arima, Maya8: The Complete Reference. 2009-01 [4] Zhao Zhijian, Application of MAYA material mode.