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Online since: January 2012
Authors: Yu Hui Zhang, Xian Min Zhang
The μ of soil, rock and ground material has been largely studied at present[1,2].
Which are more for single material.
Acknowledgements This work was financially supported by the National Natural Science Foundation (60879021), CACC Research Fund (MHRD07Z11) and Central University Basic Scientific Research Fund (ZXH 2009D019).
Vol.32(2011), p. 346 [2] Shiming Wu, Longzhu Chen: Journal of Hydraulic Engineering.
Vol.26(2010), p. 23 [4] Guifang Shang, Wei Yang, Jianmin Feng: Materials Review.
Online since: June 2011
Authors: Chang Jian Xiong, Zeng Hua Chang, Zhe Yi Meng, Yue Lin Zhu
The performance study of aviation fuel added with alcohols Yuelin Zhu1, a, Zheyi Meng1, b, Zenghua Chang1, c and Changjian Xiong2, d 1 Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China 2 Center of Materials Physics and Chemistry, Beihang University, Beijing 100191,China aylzhu@buaa.edu.cn, bjeromemeng@126.com, cjiayufly@126.com, dxchj@buaa.edu.cn Keywords: alcohol; clean jet fuel; compatibility to rubbers; corrosiveness to copper.
Experiments Materials Fuel and alcohol.
The FX-17 fluorine rubber and silicone rubber in this experiment are from the Aviation Materials Research Institute of Beijing.
Vol. 19 (2003), p. 45-51 [10] ASTM D471-2006: Standard Test Method for Rubber Property-Effect of Liquids (2006) [11] SHT0023: Jet fuels-Corrosiveness to silver-Silver strip test (1990) [12] GB/T 5096-85: Petroleum products-Corrosiveness to copper-Copper strip test (1991) [13] Xinyang Liu, Lihong Xu, Yuanli Zhong: Journal of Logistical Engineering University.
Online since: November 2021
Authors: Abdelkader Larouci, Yassine Senhadji, Laid Laoufi, Amar Benazzouk
Today, owing to the increasing demand for construction materials in the design of road pavement subgrade and due to the environment degradation, it has become urgent to develop alternative construction materials from industrial and household wastes, as well as from sediments and recyclable materials.
Materials and Methods 2.1 Study materials 2.1.1 Calcareous tuff of Sidi Ali Cherif (CTS): Tuff is a material that is widely available in Algeria; the overall area covered by tuff quarries is about 300 000 km2 [18].
Table 3: Chemical and mineralogical composition of investigated materials.
Larhyss Journal 14(1) (2000) 249-263
Exemples algeriens [In French], Larhyss journal, 27 (2016) 63-90 [25] N.T.
Online since: March 2011
Authors: Chi Kong Huang, Hsien Ming Chang, Chau Chen Torng
It also integrates the mechanical, electronic, material, chemical and information technology.
Aircraft manufacturers use nesting/pre-cut technology to increase the utility of raw material.
Then the formal shop order will release to the stock area to pull the raw material out.
Queue level control: Production controllers dispatch materials into work center base on the MRP requirement and work-in-process level.
[3] Rubinovite,J. and Levitin, G. , 1995, Genetic algorithm for assembly line balancing, International Journal of Production Economics, 41: 343-354
Online since: July 2012
Authors: Rhys Pullin, Mark J. Eaton, Karen M. Holford, Christopher Pollard, Matthew R. Pearson
In order to identify damage using AU a signal needs to be sent through the material prior to the damage, which is commonly known as a baseline [6].
Then once the baseline has been logged the material can go into its intended service.
Eight layers of the material were used to manufacture a large single patch and the material was vacuum bagged and cured in an autoclave in line with the manufacturers guidelines at 120 ºC for one hour.
Available at:http://www.authorstream.com/Presentation/mboria-240705-muravin-acoustic-emission- wave- propaga- propagation -source- location- science- technology- pt-powerpoint/ [Accessed 6 March 2011]
Energy Harvesting Journal [Online] 4 March 2009.
Online since: September 2011
Authors: Zhi Ping Kuang, Lei Xie, Qiu Hua Yang, Yi Ling Dong
Material model and parameter. 1) Use *MAT_CONCRETE_DAMAGE_ REL3 model as the concrete material in LS-DYNA.
When analysis, hypothesis rupture of concrete material is overlooked, so there is no concrete element destroy in computed results of RC column.
Actually, concrete material has been ruptured early.
References [1] Z.P Kuang, Q.H Yang and M.Cui: Journal of Tong ji University.
Vol.37(2009) No.9 Sep, p1153~1156,1216 [2] J.Z Bai: LS—DYNA3D theory foundation and instances analysis (Science Press, china 2005) [3] John O.
Online since: February 2012
Authors: Zheng Xiang Wang, Li Zheng Gu, Jian Long Wang
Influence of the 2,2-Dimethylol Propionic Acid Content on the Structure-properties of Waterborne Polyurethane Zhengxiang Wang1,a, Jianlong Wang1,b and Lizheng Gu1,c 1Key Laboratory of New Materials and Technology of China National Packaging Corporation, Hunan University of Technology, Zhuzhou 412008, China awangzhengxiangcs@163.com, bjianlongwang@qq.com, cgulizheng2009@126.com Keywords: Waterborne polyurethane, Structure-properties, DMPA content, Thermal property.
Experimental Materials.
This implied that urea groups is more stable than urethane groups, and with the increasing content of DMPA, additional urethane and urea groups would be formed in polyurethane chain, which caused lower thermal stability of WPU materials.
Kulkarni: Journal of Applied Polymer Science, Vol. 117 (2010), p. 572
Xu: Water-borne Polyurethane Materials (Chemical Industry Press, China 2006), p.126.
Online since: December 2007
Authors: Wing Bun Lee, Chi Fai Cheung, Suet To, Hua Li, Ling Bao Kong
This type of measurement method has high measurement precision and resolution which is especially suitable for some soft material workpiece.
The method is especially suitable for measuring optical surface and plating surface, which are made of soft material.
It is particularly applicable to some soft material, plastic material and biological material.
For some workpieces made of soft material, plastics, glass and so on, the workpiece surface is scratched, more or less, by the stylus of the machine.
Journal of Harbin University of Science and Technology, 3, 1999
Online since: July 2014
Authors: Sabrine el Hannoudi, Zakaria el Alami, Abdelouafi el Ghoulbzouri
The input parameters of the finite element model are provided as random variables to account for uncertainty in the material, geometry, and loading parameters.
The fiber cross-sections are composed of uniaxial material models.
Material models for steel, unconfined concrete in girders and column cover regions and confined concrete in column core regions that are used in the actual work correspond respectively to the uniaxial smoothed bi-linear steel material and uniaxial smoothed concrete material.
The material properties of the concrete and reinforcement steel and load parameters are modelled as aleatory random variables, as detailed in Table 2, Figure 5, Figure 6 and Figure 7.
JOURNAL of Engineering Mechanics, ASCE.
Online since: April 2021
Authors: Martina Zimmermann, Jan Kalich, Uwe Füssel, Lars Ewenz
Here, clinching as a cold forming joining process offers several advantages such as no use of filler materials and lower energy input compared to thermal processes.
Hence, the so-called “clinchability” has to be addressed with regard to materials [4], design [5], and manufacturing [6].
Mucha [7] shows which interactions exist between process parameters and the geometrical parameters of the clinch joints by using steel sheet materials.
FAT-Schriftenreihe 221, VDA Verlag, Berlin, 2009 [4] Reich, M.; Osten, J.; Milkereit, B.; Kalich, J.; Füssel, U.; Kessler, O.: Short-time heat treat-ment of press hardened steel for laser-assisted clinching, Materials Science and Technology, 30 (2014) 11, S. 1287-1296, doi: 10.1179/1743284714Y.0000000556
Journal of Materials Processing Technology n. 9 (2012), S. 1900–1905, doi: 10.1016/j.jmatprotec.2012.04.017
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