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Online since: June 2013
Authors: Jian Qiang Li, Yan Hui Zhang, Zeng Hua Lin
Research of the Vibration Signal for the Bridge Structure Base on Stochastic Minus Method
Yanhui Zhang1,a , Zenghua Lin1,b and Jianqiang Li1,c
1School of Civil, University of Science and Technology LiaoNing, China
aTy-zhangyanhui-1@163.com bLzh1981@163.com cLijq992@163.com
Keywords: Bridge Structure; Vibration Signal; Seismic Excitation ; Stochastic Minus Method.
We use MATLAB software to achieve Stochastic Minus method by programming, and deal with the vibration signal of this bridge. 2.1 The Establishment of Finite Element Model According to the material properties and geometric characteristics of the bridge structure, we establish the spatial finite element model of the bridge.
Shown in Fig.1 Fig 1 The Object Model of Continuous Beam Bridge The initial parameters of materials which is used in model calculations is shown in Table 1.
Table 1 Initial Parameters of Materials Modulus of Elasticity Poisson Ratio Density Prestressed Steel Beam Concrete 1.95×105 3.45×104 0.3 7850 2.2 Simulation of Earthquake Load With the software MATLAB, we get the Simulated Time-histories Curve of earthquake action.
Journal of Structural Engineering,ASCE,1991,117(11):3396-3416
We use MATLAB software to achieve Stochastic Minus method by programming, and deal with the vibration signal of this bridge. 2.1 The Establishment of Finite Element Model According to the material properties and geometric characteristics of the bridge structure, we establish the spatial finite element model of the bridge.
Shown in Fig.1 Fig 1 The Object Model of Continuous Beam Bridge The initial parameters of materials which is used in model calculations is shown in Table 1.
Table 1 Initial Parameters of Materials Modulus of Elasticity Poisson Ratio Density Prestressed Steel Beam Concrete 1.95×105 3.45×104 0.3 7850 2.2 Simulation of Earthquake Load With the software MATLAB, we get the Simulated Time-histories Curve of earthquake action.
Journal of Structural Engineering,ASCE,1991,117(11):3396-3416
Online since: September 2011
Authors: Mei Niu, Hai Bin Fan, Wen Sheng Hou, Jin Ming Dai, Zi Lu Wu, Sheng Shi
Structure and Properties of MWNTs-OH/PET FDY Composite Fiber
Wensheng Hou1,2,a, Haibin Fan 1,b,Mei Niu1,c,Jinming Dai1,d,
Zilu Wu 1 and Sheng Shi1
(1.College of Textile Engineering and Arts, Taiyuan University of Technology,
Taiyuan, Yuci 030600)
(1.College of Material Science and Engineering, Taiyuan University of Technology,
Taiyuan, 030024)
awshou10@163.com,bfanhaibin721@sina.com,cniumeityut@163.com,
dtgmydjm@163.com
Keywords: PET, MWNTs-OH, Terephthalic acid (TPA), Composite fiber
Abstract.
Since the discovery of CNTs in 1991, it has been a focus of research for a long time, Now, it has been widely used in the CNTs/PET composite materials.
However, having a good dispersion and compatibility of CNTs in polymer matrix is one of the prerequisites for composite materials to obtain excellent properties.
Journal of Tianjin Polytechnic University.
Since the discovery of CNTs in 1991, it has been a focus of research for a long time, Now, it has been widely used in the CNTs/PET composite materials.
However, having a good dispersion and compatibility of CNTs in polymer matrix is one of the prerequisites for composite materials to obtain excellent properties.
Journal of Tianjin Polytechnic University.
Online since: May 2012
Authors: Ping Ning, Guang Fei Qu, Xiang Feng Xiong, Zhi Zhong Ren, Li Juan Jia, Hui Feng, Cheng Zhou
Biogas production from cow manure in an experimental 20 m3 reactor with a jet mixing system
Zhizhong Ren1,a, Ping Ning 1,b,Lijuan Jia1,c, Guangfei Qu 1,d, Xiangfeng Xiong1,2,e,*, Hui Feng1,f and Cheng Zhou1,g
1College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China
2 Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China
a124142941@qq.com, bningping58@sina.com, cjuan04058@126.com, dqgfljy@126.com, e,﹡xiangfengx@sina.com, f517197250@qq.com, gc-zhou04@mails.tsinghua.edu.cn
Keywords: Anaerobic digestion;Biogas;Jet mixing system;Batch fermentation process;Cow manure.
Materials and methods Feedstock and characterisation.
This fact indicates that decomposition of organic solid materials was stable and slow after the 9th day.
Yang, “Investigation and pollution prevention in livestock and poultry of scale in China,”China Environment Science Press.
Wang, “Idea of environmental protection and treatment of livestock and poultry manure,” Shanghai Journal of Animal Husbandry and Veterinary Medicine, vol.5,2009,pp.59-61(In Chinese) [3] H.
Materials and methods Feedstock and characterisation.
This fact indicates that decomposition of organic solid materials was stable and slow after the 9th day.
Yang, “Investigation and pollution prevention in livestock and poultry of scale in China,”China Environment Science Press.
Wang, “Idea of environmental protection and treatment of livestock and poultry manure,” Shanghai Journal of Animal Husbandry and Veterinary Medicine, vol.5,2009,pp.59-61(In Chinese) [3] H.
Online since: October 2014
Authors: Petru Dușa, Radu Baciu Lupașcu
On another hand ultrasonic technology has many wave modes to investigate materials including bulk wave (longitudinal and shear wave), surface wave (Rayleigh) every mode offering unique parameters for extracting information.
On another hand ultrasonic technology has many wave modes to investigate materials including bulk wave (longitudinal and shear wave), surface wave (Rayleigh) every mode offering unique parameters for extracting information.
Bilge, Investigation of total welding residual stress by using ultrasonic wave velocity variations, Gazi University Journal of Science.
Javadi, Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness, Materials & Design, 2013, pp. 591-601
[8] E 494-95 Standard Practice for Measuring Ultrasonic Velocity in Materials.
On another hand ultrasonic technology has many wave modes to investigate materials including bulk wave (longitudinal and shear wave), surface wave (Rayleigh) every mode offering unique parameters for extracting information.
Bilge, Investigation of total welding residual stress by using ultrasonic wave velocity variations, Gazi University Journal of Science.
Javadi, Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness, Materials & Design, 2013, pp. 591-601
[8] E 494-95 Standard Practice for Measuring Ultrasonic Velocity in Materials.
Online since: March 2008
Authors: Alexander M. Korsunsky, Shu Yan Zhang, Jordan Schlipf
Korsunsky
1,a
1
Dept of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, England
a
alexander.korsunsky@eng.ox.ac.uk
Keywords: residual stress, X-ray diffraction, polycrystal, elasticity, plasticity, eigenstrain
Abstract.
Experimental The material used in this study was aluminium alloy AA2024, with the nominal composition (in wt%) shown in Table 1.
Edwards: Journal of Strain Analysis 31(1996) p.413-21
Poussard: Journal of Strain Analysis 74 (1998) p. 233-263
[8] R.R. de Swardt: Journal of Pressure Vessel Technology, 125 (2003) p. 274-276
Experimental The material used in this study was aluminium alloy AA2024, with the nominal composition (in wt%) shown in Table 1.
Edwards: Journal of Strain Analysis 31(1996) p.413-21
Poussard: Journal of Strain Analysis 74 (1998) p. 233-263
[8] R.R. de Swardt: Journal of Pressure Vessel Technology, 125 (2003) p. 274-276
Online since: April 2009
Authors: Mark J. Schulz, Vesselin N. Shanov, Nilanjan Mallik, Douglas Hurd, Supriya Chakraborty, Chaminda Jayasinghe, Jandro Abot, Albert Song
C., The Journal
of the Acoustical Society of America (2006 )Volume 119, Issue 2, pp. 872-878
Ghoshal; Monitoring Multi-Site Damage Growth During Quasi-Static Testing of a Wind Turbine Blade using a Structural Neural System, SHM Journal, in press
Schulz, Ajit Kelkar, Mannur Sundaresan, "Nanoengineering of Structural, Functional, and Smart Materials," CRC Press, 1/06
[7] Meyyappan, M., Carbon Nanotubes: Science and Applications, CRC Press, Boca Raton, Fla., 2005
Schulz, The Effect of Substrate and Catalyst Properties on the Growth of Multi-Wall Carbon Nanotube Arrays, Materials Research Society, Fall Meeting, 2005.
Ghoshal; Monitoring Multi-Site Damage Growth During Quasi-Static Testing of a Wind Turbine Blade using a Structural Neural System, SHM Journal, in press
Schulz, Ajit Kelkar, Mannur Sundaresan, "Nanoengineering of Structural, Functional, and Smart Materials," CRC Press, 1/06
[7] Meyyappan, M., Carbon Nanotubes: Science and Applications, CRC Press, Boca Raton, Fla., 2005
Schulz, The Effect of Substrate and Catalyst Properties on the Growth of Multi-Wall Carbon Nanotube Arrays, Materials Research Society, Fall Meeting, 2005.
Online since: May 2022
Authors: Ya Nan Li, Wei Cai Ren, Zhi Hui Li, Feng Chun Wang, Rui Shuai Gao
Introduction
Heat treatable strengthened 7xxx series Al alloys are still a key pillar of alloy materials for the aerospace industry, which have an excellent specific strength, plastic toughness and good corrosion resistance [1-4].
Meanwhile, Fracture toughness, as an important performance index in the mechanics of materials, needs to be improved to the maximum extent possible while meeting the high strength of commercial aluminum alloys.
Materials and Methods The chemical compositions (wt.%) of three kinds of high-strength Al-Zn-Mg-Cu alloys were listed in Table 1.
Kamaris, Aluminium alloys as structural material: A review of research, Eng.
Dong, Effects of minor Si and Fe additions on microstructure and properties of Al-Zn-Mg-Cu-Zr-Cr-Ti aluminum alloy, Journal of Central South University (Science and Technology). 48 (2017) 3177-3186
Meanwhile, Fracture toughness, as an important performance index in the mechanics of materials, needs to be improved to the maximum extent possible while meeting the high strength of commercial aluminum alloys.
Materials and Methods The chemical compositions (wt.%) of three kinds of high-strength Al-Zn-Mg-Cu alloys were listed in Table 1.
Kamaris, Aluminium alloys as structural material: A review of research, Eng.
Dong, Effects of minor Si and Fe additions on microstructure and properties of Al-Zn-Mg-Cu-Zr-Cr-Ti aluminum alloy, Journal of Central South University (Science and Technology). 48 (2017) 3177-3186
Online since: March 2013
Authors: Xu Dong Sun, Yoshio Sakka, Ji Guang Li, Shao Hong Liu, Xiao Li Wu, Xiao Dong Li, Jin Kai Li
Structural Features and Color Tunable Photoluminescence of The Binary and Ternary Layered Rare-Earth Hydroxides of (Y,Ln)2 (OH)5NO3·nH2O (Ln=Tb, Eu)
Xiaoli Wu 1, 2, a, Ji-Guang Li1, 2, b, Jinkai Li 1, c, Shaohong Liu1, d, Xiaodong Li1, e, Xudong Sun1, f , Yoshio Sakka2,g
1 Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education) and School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110004, China
2Advanced Materials Processing Unit, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan
awu.xiaoli2008@gmail.com, bLI.Jiguang@nims.go.jp, clijk85@163.com, dliush@smm.neu.edu.cn, elixd@smm.neu.edu.cn, fxdsun@mail.neu.edu.cn, gSAKKA.Yoshio@nims.go.jp
Keywords: layered rare-earth hydroxides, solid solutions, luminescence color-tune, energy transfer
Abstract.
It can be seen that well crystallized products have been obtained, with the strong 00l and 220 reflections being characteristic of the LRH-type materials.
Bhargava, Doped nanocrystalline materials—physics and applications, J.
Sasaki, Anion-Exchangeable Layered Materials Based on Rare-Earth Phosphors: Unique Combination of Rare-Earth Host and Exchangeable Anions, Chem.
Sasaki, Anion-Exchangeable Layered Materials Based on Rare-Earth Phosphors: Unique Combination of Rare-Earth Host and Exchangeable Anions, Acc.
It can be seen that well crystallized products have been obtained, with the strong 00l and 220 reflections being characteristic of the LRH-type materials.
Bhargava, Doped nanocrystalline materials—physics and applications, J.
Sasaki, Anion-Exchangeable Layered Materials Based on Rare-Earth Phosphors: Unique Combination of Rare-Earth Host and Exchangeable Anions, Chem.
Sasaki, Anion-Exchangeable Layered Materials Based on Rare-Earth Phosphors: Unique Combination of Rare-Earth Host and Exchangeable Anions, Acc.
Online since: January 2016
Authors: Oldrich Zmeskal, Jan Pospisil, Veronika Schmiedová, Viliam Vretenar, Peter Kotrusz
Batteries, transistors, memory devices, sensors, composite materials and solar cells (transparent electrodes, charge-extraction and active layers) are only one of the examples of the using of graphene and its derivatives [5, 6].
Acknowledgments Authors thank to Ministry of Education, Youth and Sports of Czech Republic for support by national project COST LD14131 and for support by project Sustainability and Development REG LO1211 addressed to Materials Research Centre at FCH BUT.
Seal, Graphene based materials: Past, present and future, Prog.
Zmeskal: submitted to Advanced Materials Research (2015) [11] J.
Cerny: submitted to Materials Science (Medžiagotyra) (2014)
Acknowledgments Authors thank to Ministry of Education, Youth and Sports of Czech Republic for support by national project COST LD14131 and for support by project Sustainability and Development REG LO1211 addressed to Materials Research Centre at FCH BUT.
Seal, Graphene based materials: Past, present and future, Prog.
Zmeskal: submitted to Advanced Materials Research (2015) [11] J.
Cerny: submitted to Materials Science (Medžiagotyra) (2014)
Online since: November 2011
Authors: J.M. Huang, Z.L. Deng, D.B. Zhang, W.L. Liu
Journal of Applied Physics, 2009. 73(11): p. 7120-7124
[4] Osterberg, P., Electrostatically actuated microelectromechanical test structures for material property measurement. 1995
Microelectromechanical Systems, Journal of, 2002. 10(4): p. 601-615
Microelectromechanical Systems, Journal of, 2002. 11(5): p. 612-620
[13] Zhengjia, wavelet finite element theory and its engineering applications. 2006, Science Press
[4] Osterberg, P., Electrostatically actuated microelectromechanical test structures for material property measurement. 1995
Microelectromechanical Systems, Journal of, 2002. 10(4): p. 601-615
Microelectromechanical Systems, Journal of, 2002. 11(5): p. 612-620
[13] Zhengjia, wavelet finite element theory and its engineering applications. 2006, Science Press