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Online since: July 2013
Authors: Yao Li, Jun Jie Yang, Ping Xue, Wu Xin Yu
Introductions Electro plastic effect refers to a kind of phenomenon: deformation resistance decreases dramatically and plasticity rises obviously when materials (various kinds of metals, ceramics, super-conduction materials, powder metallurgy products) are conducted by active electrons (current or electric field) Electro plastic effect generated by high energy impulse current is a compound effect and a result caused simultaneously by various of physic effects.
Contrast tension tests as to temperature were conducted, for the material would produce thermal effects when the currents were added.
Tensile strength decreased slightly, but the changes were very minute and were in the scope of normal test error compared to the elongation and strength of the material by adding impulse currents.
Acknowledgements This work is supported by general program of National Science Foundation of China, with Science Research Project No. 51071077.
[2] Li Yao, Dong Xiaohua, Electrosuperplastic Effect of Zn-22%Al Alloy, The Chinese Journal of Nonferrous Metals,1996, 6(3) 151-154 [3] K.Okazaki, M.Kagama, H.Conrad, An Evaluation of the Contributions of Skin, Pinchand Heating Effects to the Electroplastic Effect in Titanium.Materials, Science and Engineering, 1990, (45) 109-116 [4] National Standard of the People's Republic of China, Wrought Aluminium and Aluminium Alloy-Chemical Composition Limits GB/T 3190-1996 [5] H.Conrad, A.F.Sprecher, The Electroplastic Effect in Metals.Dislocation in Solids, Metal 1989, (8) 110-114
Online since: September 2013
Authors: Chuang Wu, Hao Chen, Wen Jiang Feng, Zhi Guo Zhang
Introduction Electrocaloric (EC) materials have recently attracted considerable interest for use in solid-state cooling devices.
On the other hand, ferroelectric materials, such as Ba1-xSrxTiO3, Pb1-xSrxTiO3, etc., have been recognized for their importance as extraordinary functional materials due to their attractive dielectric properties, such as high dielectric constant, low dielectric loss, spontaneous polarization, and strong field dependence of dielectric constant.
Acknowledgement This work has been supported by the Outstanding Young Scholars Growth Plan of Liaoning Province under Grant No LJQ2011117, and the Science & Technology fund of Liaoning Province under No 2010220012.
Mathur: Science Vol. 311 (2006), p. 1270 [2] A.
Sci Vol 44 (2009), p. 5263 [6] Yinglong Wang, Tongru Wei, Baoting Liu, Lizhi Zhu, and Guangsheng Fu: Journal of Functional Materials Vol. 7 (2008), p. 1115
Online since: January 2005
Authors: M. Ashraf Imam, Valery Khabashesku, Roger Crane, Karen Lozano, Jiang Zhu, Enrique V. Barrera
Processing and Properties of Polymer Composites Reinforced by Functionalized SWNTs Jiang Zhu1 , Valery Khabashesku2 , Ashraf Imam3* , Roger Crane4 , Karen Lozano5 , Enrique Barrera1 1 Department of Mechanical Engineering and Materials Science, 2Department of Chemistry and Center for Nanoscale Science and Technology, Rice University, 6100 Main Street, Houston, TX 77005, USA 3 Naval Research Laboratory, 4555 Overlook Ave, Washington D.C., 20375, USA 4 NSWC Carderock Division, 9500 Macarthur Blvd, West Bethesda, MD, 20817, USA 5 Department of Mechanical Engineering, University of Texas Pan American, 1201 W.
Key Words: Composites, nanotubes, functionalization Introduction Single wall carbon nanotube (SWNT) has been seen as an excellent reinforcement candidate for advanced composite materials with multifunctionality.
Experimental The starting materials used in this work were SWNTs in the form of BuckyPearls from Carbon Nanotechnologies Inc.
Gerard, Journal of Materials Science, 36 (2001), 5245-5252
Online since: June 2012
Authors: Hong Shen, Yu Feng Deng, Jian Hao
Introduction Modern science and technology progress has made human beings can fabricate and create a new life forms.
Now the organ artificialization technology has become one of the tip of the medical science technologies, and the core is the development of biomedical materials these years, as our country pays more attentions and investments on aerospace field, the research of titanium alloy materials gradually deepens.
Choose the cemented carbide YW2 as cutting tool material [7], and take commonly used Ti6Al4V in medical as the titanium sheet sample, its physical performance parameters just as shown in Table 1.
The Development and Research Present Status of Biomedical Titanium Alloys [J]: Development and Application of Materials: 2010, 2: 81-85 [2] Cao Chun-xiao and Yan Yuan-lin.
Simulation and Experimental Investigation of Minipore Dring of Austenitic Stainless Steel: Journal of South University of Technology (Natural Science Edition): 2008, 10, 120-124
Online since: August 2011
Authors: Ju Bao Qu
Intelligent control system mainly consists of the following components: (1) transfer institutions: the puncture needle into the raw material from a box sent by the transmission belt disc fixture, after adjusting the position and wait for clamping cutting slot.
WANG: Journal of Central China Normal University(Nature Science), Vol. 38(4) (2004), p. 418, In Chinese [2] E.
Tan: Journal of Computational and Applied Mathematics, Vol. 19(5) (2006), p.46, In Chinese [4] J.
Qu: Journal of Chongqing Normal University (Natural Science), Vol. 27(6) (2010),p.69, In Chinese [5] M.
Online since: November 2013
Authors: Yu Fu
Journal of computer, 2010,31 (9): 1493-1502
Huazhong University of Science and Technology, 2010: 2-17
Journal of Taiyuan University of Science and Technology, 2012 (08): 319-320
Application of material in the public facilities design [J].
Journal of Zhengzhou Institute of Aeronautics Industry Management, 2011(5): 26-27.
Online since: September 2013
Authors: Yong Tai He, Rui Ming Liu, Jin Hao Liu
The solar thermal collector and the PV/T collector were installed aluminum alloy frame with insulation material in middle.
Acknowledgments The authors thank National Natural Science Foundation of China (No.61271159)and Applied Basic Research Foundation of Yunnan Province of China (No. 2011FB088) and the Research Foundation of Chuxiong Normal University of China(No.10zd03) for their financial supply.
Radziemska, Performance Analysis of a Photovoltaic-Thermal Integrated System, International Journal of Photoenergy, (2009), p.ID 732093, 6
He, Photovoltaic-Thermal Collector System for Domestic Application, Journal of Solar Energy Engineering, Vol. 129(2007), p. 205-209
MingHeng, Energy and exergy efficiency analysis of a solar concentrating PV/T air heating collector, Journal of Engineering Thermophysics, Vol. 29 (2009)
Online since: April 2014
Authors: Zhong Gen Xu, Chang Gen Deng, Kang Qin
Dynamic elastic-plastic analysis of a structure generally can be divided into following steps: (1) According to the mechanics characteristics of a structure system, establish a reasonable structural vibration model; (2) According to the material properties, structure type and loading condition, choose proper structural restoring force model, and determine restoring force characteristic parameters of feature points and the restoring force characteristic curves of each line segment stiffness value corresponding to cracking, yielding and ultimate displacement (3) Establish vibration differential equations of the structure under dynamic loads; (4)By step-by-step integration method, solve the vibration equations and get the responses of displacement, velocity and acceleration, and the whole process of structural seismic; (5) Draft angles are calculated and checked if they are less than allowable values.
Earthquake Science, 2010, 03: 265-274
Journal of Shenyang architectural university (natural science edition), 2010 and practices: 1111-1118.
Journal of civil engineering, 2000, and practices: 33 to 37.
Journal of building structures, 2011, 05:1-8.
Online since: April 2018
Authors: Michal Stanek, Martin Ovsik, Vojtech Senkerik
The modified polyamide shifts to the group of materials that have considerably better properties.
The energy from the electrons absorbed could provoke some molecular or supermolecular changes and as a consequence leads to the structural modification of the irradiated materials.
The modified PA6 shifts to the group of materials which have considerably better properties.
Asgari, Nanoindentation of Isotactic Polypropylene: Correlations Between Hardness, Yield Stress, and Modulus on the Local and Global Scales, Journal of Applied Polymer Science 121 (2011), 930 - 938
Pharr, Measurement of Hardness and Elastic Modulus by Instrumented Indentation, Journal of Materials Research 19 (1) (2004), 1564 – 1583
Online since: July 2011
Authors: Ya Li Wang
Seismic Behavior Analysis on Reinforced Connections of Multibarrel Tube-confined Concrete column and beam Numerical Simulation Ya-li Wang (School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mian yang, Sichuan 621010; China) Wyl37@tom.com Keywords: multibarrel tube-confined concrete column; I-shaped steel beam; finite element analysis; hysteretic behavior.
Joint parameters and models Bare steel specimens model number was Q235-B, Yield stress (fy) is 215000MPa, The steel was assumed to be a elastic–plastic material with strain hardening in compression.
Journal of Southwest University of Science and Technology[J].(2008),23(1):1-7
Journal of Structural Engineering, (2004), 130(2): 180–88