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Online since: October 2014
Authors: Nor Amalina Nordin, Aidah Jumahat, Muhammad Hussain Ismail, Nor‘aini Wahab, Izyan Rabzi
Introduction Rheology is a study of deformation and flow of materials subjected to applied forces.
Journal of Science and Technology, (2010) [2] P.M.
Ellis, A novel binder system for powder injection molding, Advance in Powder Metallurgy & Particulate Materials 2, 6(1995), 15-26
Ellis, The influence of PMMA content on the properties of 316L Stainless Steel MIM Compact, Journal of Materials Processing Technology 113, 2001, pp 477-481
Journal of Materials Processing Technology 137(2003) 177-182.
Online since: January 2015
Authors: Lei Yang, Wen Huang
Metal matrix is an elastic-plastic material.
Acknowledgements Supported by the National Natural Science Foundation of China (Grant No. 11102116) and Shenzhen science and technology research and design fund (Grant No.
Gibson, A review of recent research on mechanics of multifunctional composite materials and structures, Composite Structures, 92(2010) 2793-2810 [2] Mohamad S.
Sci., 1984,19,3319-3324 [4] Zhen Wang and Yuanming Xia, Experimental evaluation of the strength distribution of fibers under high strain rates by bimodal Weibull distribution, Composites Science and Technology, 57(1997) 1599-1607 [5] Huang Wen, et.al, An experimental study on strain rate-dependent tensile properties of aluminum L2, Materials Science and Technology, Vol.10-3 (2002) 263-267 (in Chinese) [6] Yang Wang, Yuanming Xia and Yuxi Jiang.
Tensile behavior and strength distribution of polyvinyl-alcohol fibre at high strain rates, Applied Composite Materials, 8(2001), 297-306 [7] Tadashi Matsunaga, et.al, Effect of acoustic cavitation on ease of infiltration of molten aluminum alloys into carbon fiber bundles using ultrasonic infiltration method, Composites Part A, Vol. 38-3 (2007) 771-778 [8] Yuanming Xia and Yang Wang, Dynamic Testing of Materials with the Rotating Disk Indirect Bar-Bar Tensile Impact Apparatus, Journal of Testing and Evaluation, 35 (2007) 31-35
Online since: October 2013
Authors: Dong Liang, Zhe Zhao, Hao Wei Yao
Combustible analyses The main combustible materials and their thermal physical parameters are listed in Tab.1 and Tab.2 [1] [2].
Tab.1 List of main combustible materials in coach Component Main Combustible Material Seat Polyurethane foam Window curtain Fabric Wall & Ceiling and Baggage rack PVC Floor Plywood Tab.2.
Properties of Materials Material Density (kg/m3) Thermal conductivity (W/m·K) Specific heat (kJ/kg·K) Temperature to ignition (℃) Reaction heat (kJ/kg) Combustion heat (kJ/kg) Fabric 100 0.1 1 350 3000 15000 Polyurethane foam 40 0.05 1.1 350 1500 30000 PVC 1380 0.16 0.9 507 2000 19000 Plywood 510 0.12 2.1 400 840 18700 Numerical simulations With the development of fire science, the scientific methods were applied to investigate the fire scene in order to obtain detailed evidences.
“Numerical Simulation on Spreading Characteristic of Coach Fire,”ICEEP 2012- 1st International Conference on Energy and Environmental Protection Advanced Materials Research, pp1269-1272
Behavior of 10 mm Toughened Glass in Full-Scale Enclosure Fires, Journal of Combustion Science and Technology 30, p.81.
Online since: June 2011
Authors: Yue Lin Zhu, Zeng Hua Chang, Juan Pang, Chang Jian Xiong
Synthesis of Zeolite 4A from Kaolin and Bauxite by Alkaline Fusion at Low Temperature Yuelin ZHU1,a, Zenghua CHANG1,b,Juan PANG1,c and Changjian XIONG2 1 Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, China 2 Center of Materials Physics and Chemistry, Beihang University, Beijing 100191,China aylzh@buaa.edu.cn, bjiayufly@126.com, cpangjuan22cool@163.com Keywords: Zeolite 4A; Kaolin and Bauxite; Alkaline fusion; Hydrothermal synthesis.
Experimental Materials.
Rangsriwatananon: Materials Letters.
Chao: Microporous and Mesoporous Materials.
Chao: Journal of Hazardous Materials.
Online since: April 2016
Authors: P. Sravana, T. Chandrasekhar Rao, S. Krishna Rao
EXPERIMENTAL INVESTIGATIONS 2.1 Materials 2.1.1 Cementitious materials Ordinary Portland Cement OPC 53 Grade was used in the present experimental investigation.
Journal of Materials in Civil Engineering, 14(3), 274-277. http://dx.doi.org/10.1061/(ASCE)0899-1561(2002)14:3(274) [4] Atiş, C.
Materials and Structures,35(4), 257-260. doi:10.1007/BF02533087 [5] Bonicelli, A., Giustozzi, F., & Crispino, M. (2015).
Journal of Materials in Civil Engineering, 14(5), 417-426. http://dx.doi.org/10.1061/(ASCE)0899-1561(2002)14:5(417) [17] Naik, T.
Construction and Building Materials, 29, 270-278. doi:10.1016/j.conbuildmat.2011.09.011 [25] Siddique, R. (2003).
Online since: September 2012
Authors: Qiang Zhang, Shou Ju Li
This text applys the model of flexible body material (MAT_PLASTIC_KINEMATIC)to build physical model of pick,using SPH theory to establish working model of rock cutting,making simulation for the progress of cutting different hardness of rock based on LS-DYNA,getting stress changes and statistical data of carbide cutter head and the simulation results are analyzed.Providing a new means and methods for studying the condition of cutting rock and strength. 1 Establishment of the cutting rock model of pick 1.1 Model of Pick.Pick is composed of denticle and hard alloy head.The denticle is 42CrMo steel,modulus of elasticity of materials is 212 GPa, poisson's ratio is 0.28,density is 7850 kg/m3 ;Materials of hard alloy head is YG series of hard alloy.Modulus of elasticity of materials is 600GPa, poisson's ratio is 0.22, density is 14600 kg/m3 Modeling for pick by using LS-DYNA,applying the 3 D Solid 164 unit types and the model of flexible body material (MAT_PLASTIC_KINEMATIC)to build finite
Defined as: (3) C is normalization constant which is decided by space dimensionality.So choosing rock material model 13,contain failure of the elasto-plastic material(MAT_ISOTROPIC_FAILURE),The basic parameters of the rock[8,9]:shear modulus is 6910MPa,bulk modulus is 10.5GPa,Plastic strengthen modulus is 150MPa,Poisson’s number is 0.23.Plasticity invalidation strain is 0.06. 2 Strength analysis of pick when cutting different hardness of rock To make clear that the stress of carbide cutter head of pick when cutting different hardness of rock.Choosing the carbide cutter head as analysis points,making a simulation for the progress of cutting different hardness (with Sturdiness coefficient f said)of rock.
Acknowledges: The study was partially financial supported by Liaoning Provincial Department of Education Fund (L2011050); Dalian Science and Technology University of structure state key laboratory open fund(ZG1107)(ZG0818) Reference: [1] Xie Xi-Chun, Li Xiaohuo editor.
Mining machinery and equipment (second edition) [M].journal of China mining university press, 2007
Journal of coal, 2006, 31 (1) : 121-124 [5] Li Xiao-Huo.
Online since: February 2014
Authors: Yan Yan Wang, Chang Zheng Zheng, Liang Wang, Lei Xu
Synthesis, Crystal Structure and Antibacterial Activity of 4-Hydroxy-Benzaldehyde Benzoyl Hydrazone Yan-yan Wang1,a,Chang-zheng Zheng1,b,Liang Wang*2,c,Lei Xu1 1 School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China 2 State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China a yanyan7938@126.com, b zgcgzg@126.com, c wanglcody@163.com Keywords: Aroylhydrazone, Synthesis, Crystal Structure, Antibacterial Activity Abstract.
Aroylhydrazones are important starting materials for a wide range of derivatives utilizable in pharmaceutical products.
Experimental Materials and Methods All starting materials (4-hydroxybenzaldehyde,ethyl benzoate) and solvents used in this work were of analytical grade and used as purchased from Sinopharm Chemical Reagent Co.
Environ Vol. 15 (2011),p. 579-585 [2] C.Z.Zheng, L.Wang, J.Liu: Journal of Molecular Structure Vol. 1018 (2012),p. 78-83 [3] R.N.
Srivastsva: Journal of Molecular Structure Vol. 1049 (2013),p. 419-428 [4] I.Mir, M.T.Siddiqui, A.Comrie:Tetrahedron Vol. 26 (1970),p. 5235-5237 [5] R.Cavier, R.Rips: J.
Online since: December 2016
Authors: Katsuhiko Sasakir, Yusuke YANAGISAWA, Yasuhiro Kishi
Experimental method and results Materials and Heat Treatment Material used in this study was Ni-Cr-Mo-V forged steel (ASTM A470M steel).
Material Properties The material properties change depending on the temperature and volume fraction.
The material properties of the mixed phase during the phase transformation were calculated using Eq. 3.
References [1] Inoue, T., Journal of the Japan Society for Heat Treatment, Vol. 42, No. 5, (2002), pp. 304-317
[2] Okamura, K., Journal of the Society of Materials Science, Vol. 55, No. 5, (2006), pp. 529-535
Online since: April 2014
Authors: Xiao Hang Wan, Zhao Wei Dong, Sheng Yong Liu, Zhan Ping Huang
The material goes into plastic status at first heating step.
The material is common structure steel, which density is 7850Kg/mm3, and poisson ratio is 0.3.
The friction force is a part of equivalent stress in material
[2] Qingquan Zhang, Yongmou Liu, Yaojin, etal.Numerical simulation of plate rolling process [J].Journal of Materials Steel, 2004,25(3):10-16
Zhang, etal.Analysis of work-piece cross section temperature field of the hot strip rolling process [J].Journal of ShanDong Metallurgy , 1999,16 (4) :10 - 16
Online since: October 2010
Authors: Jing Wang, Hong Gao, Hong Bo Yu
These materials are utilized as precursors for catalysts or catalyst supports, as anion-exchanging materials and drug delivery systems[1,2].
Fig.1 the XRD patterns of LDHs with different Mg/Al molar ratio Key XRD data and structural parameters of the materials are listed in Table 1.
The activity energy in solid materials includes two parts.
Kunev: Journal of Alloys and Compounds, Vol.422(2006), p.53-57 [5] Z.
Calka: Journal of Alloys and Compounds, Vol.434-435(2007), p.743-746 [6] R.