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Finite element analysis of transient welding stress and strain during Ti-6Al-4V thin plate welding with impact rotation ZHANG Yong1，2 ,a, YANG Jianguo1,b, LIU Xuesong1,c,FANG Hongyuan1,d＊ 1 State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China 2College of materials science and engineering, Liaoning Technical University, Fuxin 123000, China azhangyongdiyi@163.com, byangjianguo@hit.edu.cn, cliuxuesong@hit.edu.cn, dhyfang@hit.edu.cn Keywords: finite element analysis (FEA), Ti-6Al-4V, thin plate weldment, wave-like deformation, residual stress Abstract.
Welding with impact revolution extrusion is a strongly nonlinear phenomenon, which includes material nonlinearity, geometric nonlinearity, and contact nonlinearity.
Satoh:Journal of the Japan Welding Society Vol. 27 (1958),p. 313–320
Jung: welding journal Vol. 85(2006), p. 151s–162s
Deloach: welding journal Vol. 85(2006), p 189s–194s.

It is therefore surprising that its chemical properties are not better understood, properties that are fundamental to developing a model of the materials ageing behaviour.
The lithium hydride's reactivity with air and moisture is the main hazard with handling the material and the major concern when fielding the material.
Surface science techniques such as DRIFT, diffuse reflectance infra-red spectroscopy, are being used to measure the hydrolysis products on the hydride surface.
Particulate material is of more concern.
McLean II, Kinetic Measurement and Prediction of the Hydrogen Outgassing from the Polycrystalline LiH/Li2O/LiOH System, Journal of Nuclear Material, 2005, 347, 31.

The lightness of materials increased.
The microwave-steaming treatment caused that most tested materials became green, and some turn red.
Forest Science and Technology.
Wooden Environment Science.
Beijing：Science Press(2007)

Farrar, “Structural health monitoring using statistical process control,” Journal of Structural Engineering, pp. 1356–1363, 2000
Gullu, “Statistical process control in machining, a case study for machine tool capability and process capability,” Materials and Design, vol. 27, pp. 364–372, 2006
Lin, “Project performance evaluation based on statistical process control techniques,” Journal of Construction Engineering and Management, vol. 134, no. 10, pp. 813–819, 2008
Lee, “Application of statistical process control in injection mould manufacturing,” International Journal of Computer Integrated Manufacturing, vol. 20, no. 5, pp. 436–451, 2007
Tian, “Optimization design of the & S charts for monitoring process capability,” Journal of Manufacturing Systems, vol. 2, no. 2, pp. 83–92, 2002

Substantial increase in rate of accumulation of waste materials in recent years has resulted in greater height of dumps to minimise ground cover area.
Acknowledgements The authors wish to thank the support from National Nature Science Foundation of China (50974107).
Research on Surface Subsidence of Dump Slope Induced by Mining in Open Colliery, Journal of China University of Mining & Technology[J], 2007;36(4):482-486 (in chinese) [4].
Journal of Mining and Safety Engineering, 2008;25(3):297-300 (in chinese) [6].
Journal of China University of Mining & Technology, 2008;37(6):740-744(in chinese)

Materials and Methods In this study, we use the Zebris CMS-HS equipment, which allow us to analyze the human motion and the Simulink tool from Matlab to develop the program and for all the data preparation.
Rosati, Upper-limb robot-assisted therapy in rehabilitation of acute stroke patients: Focused review and results of new randomized controlled trial, Journal of Rehabilitation Research & Development 4 (2011) 355–366; [4] T.
Pugazhenthi, Estimation of mass moment of inertia of human body, when bending forward, for the design of a self-transfer robotic facility, Journal of Engineering Science and Technology, 2 (2016) 166 – 176; [8] T.
Loss, Torque and Force Production During Shoulder External Rotation: Differences Between Transverse and Sagittal Planes, Journal of Applied Biomechanics, 24 (2008) 51-57; [10] T.
Loss Journal of Applied Biomechanics, 24 (2008) 51-57;

Through advancement of medical science, control of infection is more emphasized during dental treatment.
Materials and Methods Experimental Field and Facilities.
Reference [1] Dihua Zhang, Tiejun Zhou, Yaping Liu, The research progress on hospital indoor air disinfection method, J, Chinese Journal of Disinfection. 20(2003)312-.314
[2] Yuankui Yang, Fugang Wang, Xuezhi Jia, et al, The hospital disinfection detection, J, Chinese Journal of Nosocomiology, 16(2006)409
[5] Xin Zhang, Lei Ren, Jinlu Li, et al, An analysis of pollution of the dentist and the dental office, J.Beijing Journal of Stomatology, 14(2006)201-202

Introduction Researchers have considered the effects of wind loads on various tall buildings, which have been constructed according to the production of lightweight construction materials and development of structural design techniques.
Acknowledgement This work was supported by Korea Science & Engineering Foundation through the National Research Laboratory Program .
M: Journal of Engineering Mechanics, ASCE Vol.118(10) (1992), p. 2017-2030 [2] Y.Fujino: Journal of Structural Engineering ASCE, Vol. 119(123) (1993), p.3482-3502 [3] Y.H.Chen: Computer & structures Vol.57(5)(1995), p.855-861 [4] T.T.Soong: Passive Energy Dissipation Systems in Structural Engineering, John Wiley & Sons, 1997
[7] V.J.Modi:Journal of Wind Engineering and Industrial Aerodynamics, Vol. 90 (2002), p. 1907-1918 [8] T.
Yoshida.H: Journal of Wind Engineering, Vol.37 (1988), p. 557-566

Journal of Applied Physics 29, 858--862
Journal of Magnetism and Magnet Materials 149, 162-164
International Journal of Heat and Mass Transfer 42, 2543-2556
Journal of Chemical Technology and Biotechnology 78, 151-155
Chemical Engineering Science 58, 2245-2253

Study on the System Optimization Method for Supporting Structure of Urban Tunnel Ang Li1, a, Jingbo Su2, b, Caihua Shen3,c , Guojian Shao1, a , Shengyong Ding1,d and Dong Lei1,a 1 College of Mechanics and Materials, Hohai University, Nanjing, China 2 College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing, China 3 College of civil and transportation Engineering, Hohai University, Nanjing, China a liang2008@hhu.edu.cn, b jbsu@hhu.edu.cn, c shencaihua@163.com, d dingshengyong6@163.com Keywords: system optimization; tunnel supporting structure; SCORE function test; the analytic hierarchy process Abstract: The tunnel project is a systems engineering problem.
Chinese Journal of Geotechnical Engineering, 1998, 20(1):112-113(In Chinese) [2] Baochen Liu.
Chinese Journal of Rock Mechanics and Engineering，1999，18(1)：109–111 (In Chinese) [3] Mengjun Wu, Lunhai Huang, Xinrong Liu.
Journal of Chongqing Architecture University, 2005，27(5)：57-60(In Chinese) [4] Jinmu Wu.
China Journal of Highway and Transport, 1996(2) ,68-75(In Chinese) [5] Hongqian Liu.