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Online since: February 2011
Authors: Mao You Chu, Yu Qin Liu, Jian Yun Shen, Qiang Yue, Xi Zhe Wang, Ding Chun Wang
Alloy Development and Process Optimization for a New High Strength and High Toughness Titanium Alloys Ti-63 Yuqin Liu1,a, Jianyun Shen2,b, Qiang Yue2,c, Maoyou Chu2,d, Xizhe Wang2,e, Dingchun Wang3,f 1 School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China 2 Mining, Metallurgy & Materials Research Department, General Research Institute for Nonferrous Metals, Beijing, 100088, China 3Baoji Titanium Industry Co.
Ltd. for supplying the material.
Shen: Chinese Journal of Rare Metals, Vol. 32 (2008), p. 789.
Online since: April 2007
Authors: Jian Xun Wang, Chen Lu Song, Wen Jian Weng, Pi Yi Du, Ge Shen, Kui Cheng, Gao Ling Zhao, Gao Rong Han, Yi Li, Da Hai Zhang, Chao Zou
Phase Evolution of Aluminum-Chromium-Phosphate Binders During Heat-Treatment Chao Zou1, Dahai Zhang2,Yi Li2, Wenjian Weng*1, Kui Cheng1, Chenlu Song1, Gaolng Zhao1, Piyi Du 1, Ge Shen 1, Jianxun Wang1 and Gaorong Han1 1 Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China 2 Institute of Aerospace Materials & Technology, Beijing, 100076, China Keywords: Aluminum Phosphate, Chromium Phosphate Abstract.
Introduction Concentrated aqueous aluminum phosphate solution is an important inorganic binder, the binder with inorganic fillers or fibers can consolidate to a material with considerable strength and high temperature resistance after drying [1].
Hao: Journal of Northwest University Vol. 29 (1999), pp. 229
Online since: November 2012
Authors: Jong Bin Park, Ree Ho Kim, Jung Soo Mun, Wo Nok Baek
Some factors affecting the formation of a heat island are the intensive use of asphalt and diverse construction materials, mainly concrete [1].
Outdoor test facility for various pavement materials and systems (a) Thermo-couple (b) data logger (c) Net-radiometer and albedo meter Figure 2.
Kim, et al, Estimation of Environment-friendly Permeable Pavement at Laboratory Test, Material Science Forum, 510-511, 2006, pp.914-917
[3] Kim Y.R., Urbanization and recovery approach of water cycle, Water journal, vol 84, (2011) [4] Jurged, W., Der Warmeuberergabg ab einerebenen Wand, Gesundeight-Ingnierur 19, (1924)
Online since: October 2010
Authors: Di Li, Wen Qian Kang, Jia Chuan Xu
The simulation of metal rigid-plastic forming problems, such as die forging, often involves geometric, material, and contact non-linearities, and thus requires advanced numerical techniques.
This characteristic simplifies model refinement procedures, and the use of the smoother shape functions effectively handles large material distortion simulation [2].
During analyzing the forming process of die forging, nodes on local boundaries, which have contact with corner of die, often become sparse due to non-uniform flowing of metal materials.
Acknowledgments This research was sponsored by the Shandong Provincial Natural Science Foundation of China (Grant No.
Chinese Journal of Mechanical Engineering, Vol.40(2004) ,No.11, p.13 [3] J.
Online since: October 2014
Authors: Yan Xiao
According to the above method, staff can make a final judgement and assess the structure stability of the road through the reflected result in the time domain waveform of the vibration image when testing road pavement. 3.2 The application of transient vibration signals in highway engineering pavement compaction detection In the process of the roadbed compaction degree detection of highway engineering, the main method taken is: through the roadbed material in indoor environment, the dry density mxa values corresponding to the subgrade material are obtained in this process.
In this process, due to the moisture content of subgrade materials will have a decisive influence on longitudinal wave velocity, but the influence on Rayleigh wave velocity is relatively slighter.
In elastic theory, subgrade material density is associated with shear wave velocity, the relationship between the two is: shear wave velocity =(shear modulus/density)-1 At the same time, there is also a certain correlation relationship between Rayleigh wave velocity and shear velocity, the relationship between the two is: Rayleigh wave velocity = (0.87+1.1.2*formation poisson's ratio/1+ poisson's ratio)*shear wave velocity.
Journal of Hefei University of Technology (natural science),2001,24(3):345一349
Online since: August 2014
Authors: Shahram Aivazzadeh, Mohd Nasir Tamin, K.J. Wong, Xiao Jing Gong
Introduction Delamination is usually recognised as one of the earliest occurred failure modes in composite materials.
The material used was T600S/R368-1 carbon/epoxy prepreg.
Pereira, A.B. de Morais, Mode I interlaminar fracture of carbon/epoxy multidirectional laminates, Composites Science and Technology 64 (2004) 2261-2270
International Journal of Solids and Structures 48 (2011) 1767-1777
Tamin, Numerical simulation of mode I delamination behaviour of multidirectional composite laminates with fibre bridging effect, 15th European Conference on Composite Materials, June 24-28, 2012, Venice, Italy.
Online since: August 2007
Authors: Li Gang Qu, Da Wei Wu
Configuration of FEA Model Properties of Material: properties of material is firstly defined for the parts of the welded bracket, the material of all parts is AISI 1045, whilst the welded electrode is adopted medium-carbon-steel electrode E5015.
It is testified that the structure and the material of the welded bracket are satisfied with the requirement of performance.
Key Engineering Material Vol297-300(2005), p.2261-2265 [3] Du ZH J, Ning J, Gao ZH H,et al: Finite Element Analysis on Structure of Sickbed Applied to COSMOS/M.
Journal of Sichuna University(Engineering Science Edition).
Online since: June 2015
Authors: Kazukuni Hara, Yuuichi Takeuchi, Hiroaki Fujibayashi, Tomomi Kozu, Olga Milikofu, Masami Naito, Atsuya Akiba
Amarayunga: 3rd International Conference on Material and Advanced Technologies, Singapore in 2005
Malhan: Materials Science Forum Vols. 527-529(2006) pp. 251-254
Ohtani: International Conference on Silicon Carbide and Related Materials (2013), p142, Tu-P-28
Nakashima, Journal of Physics: Condensed Matter Vol. 16 (2004) S25
Online since: April 2012
Authors: Yan Jue Gong, Hong Wu, Li Zhang, Shuo Zhang
Dynamics Analysis of Refrigeration Compressor Based on Finite Element and Experimental Modes Zhang Li1, a, Wu Hong1, b, Gong Yanjue1, c and Zhang Shuo1, d 1School of Material & Mechanical Engineering, Beijing Technology and Business University, Beijing, China azhangli@th.btbu.edu.cn, bwhdx1234@163.com, cyjgong@th.btbu.edu.cn, dmyselfshuo@yahoo.com.cn Keywords:finite element analysis; experimental modal analysis; compressor Abstract.
The compressor internal structure is simplified as a solid structure of ductile iron and the material density of the simplified model should be smaller than ductile iron’s real density.
The material parameters of compressor are shown in table 1.
Table 1 Material parameters of the compressor name material density elasticity modulus Poisson's ratio compressor QT400-18 7100kg/m3 200GPa 0.3 Finite element grid partition is an important step for the theoretical modal analysis; it is closed related to the subsequent numerical analysis results.
LMS Experimental modal analysis of compressor vibration isolation component for food refrigerating unit[J].journal of Beijing technology and business university(natural science edition), 2010, 28(6):36-41
Online since: April 2012
Authors: Cheng Yan Zhu, Guan Xiu Jin
Material composition of warp yarn Material composition of weft yarn End spacing [end/10cm] Filling density [filling/10cm] Total tightness[%] Texture 1 8.3tex/48f polyester FDY with three leaf irregular section 11.1tex/72f pp fiber with star section FDY 500T/m 640 310 80.4 tabby 2 640 310 80.4 1/2twill 3 640 270 78.8 2/2twill 4 640 290 79.6 2/2twill 5 640 310 80.4 2/2twill 6 640 330 81.2 2/2twill 7 640 350 81.9 2/2twill 8 640 310 80.4 3/1twill 9 640 310 80.4 5/2satin Sample weaving process went as follows: Warp: cheese single yarn sizing single yarn warping weaving Weft: cheese winding twisting rewinding Sample dyeing and finishing process went as follows: Grey cloth pretreatment pre-setting dyeing setting Moisture permeability testing Water vapour transmission rate is applied to represent the moisture permeability of fabric, which refers to the amount of water
Adopting the same fiber material and tightness, sample No.9 whose texture is 5/2 satin is the best one in moisture permeability among 5 relative samples, and then ranks sample No.8(1/3 twill), No.5(2/2 twill) and No.2(1/2twill) according to the quality of their moisture permeability.
Under the condition that all the samples adopt the same texture and are made up of the same fiber materials, the moisture permeability would decline with the increasing of fabric tightness.
[4] LI Jun,ZHANG Weiyuan,A study of fine denier propylene knitted fabrics’ wet comfort,J.Journal of China Textile University. 6(1996)6-13
http://www.texindex.com.cn/Articles/2004-11-26/37950.html [6] HUANG Min,ZHANG Yiping,Discuss on wet conductibility of fabric made of fine pp fiber,J.Shanghai Textile Science & Technology.5 (2000):55-57.
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