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Nonlinear Finite Element Analysis of Diamond Bird-beak TX-joints Zhaoquan Zhu 1, a, Shengliang Liu 2,b 1,2 College of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, China azzq@hhu.edu.cn, bhhulsl@163.com Keywords: diamond bird-beak TX-joints; ultimate capacity; geometric parameters; load ratio Abstract.
Introduction Nowadays, tubular structures are widely used in bridges, buildings and large openings accompanied by engineering technology progress.
The 3th International Forum on Advances in Structural Engineering, Shanghai (2009),P. 159-171
[3] Yongqiang Liu, Lewei Tong, Xiaolin Zhao, in: Structural Engineers, Vol.2 (2) (2009),p. 35-40, in Chinese

Finite Difference Study on Seismic Reinforcement Force of Geo-grid Reinforced Soil Retaining Wall Li-Yan Wang1,a, Xiao-Lei Du2,b , Fu-Xing Zhang3,c, Rong-Qiu Xue4,d 1School of Civil and architectural engineering, Jiangsu University of science and technology, 212003, Zhenjiang, China, PH(86)18952860415; FAX (86)-515-84432200; 2Bureau of water conservancy Liuzhou,545000, Liuzhou, China, PH(86)13505195867; FAX (86)-515-84432200; 3School of Civil and architectural engineering, Jiangsu University of science and technology, 212003, Zhenjiang, China, PH(86)18952860415; FAX (86)-515-84432200; 4School of Civil and architectural engineering, Jiangsu University of science and technology, 212003, Zhenjiang, China, PH(86)18952860415; FAX (86)-515-84432200; Email a wly_yzu@163.com, b184409938 @qq.com, c1406224213@qq.com, dgoodrongqiu@126.com Keywords: earthquake; geo-grid; reinforced soil retaining wall; seismic internal force Abstract.
Acknowledgments The authors appreciate the support of National Natural Science Foundation of China (No. 51109099) and National Science Foundation for Post-doctoral Scientists of China (No.2011M50906) References [1] Huang, C.C., Investigations of soil retaining structures damaged during the Chi-Chi (Taiwan) earthquake, Journal of the Chinese Institute of Engineers,23(4), 417–428(2000) [2] Race, R., del Cid, H., Seismic performance of modular block retaining wall structures during the January 2001 El Salvador earthquake, In: Proc.
Forum, Taipei, Taiwan(2001) [3] Jian-Qi, LIU, Ning WANG, Yi ZHAO, Dynamic Tri-axial Test Research on Geo-grid Reinforced Clay in Different Containing Water Rates, Building Science，25(5)：51-54 (2009) [4] Jian ZHOU, Qun-yan TANG, Jia-quan WANG, Jiao ZHANG, Microcosmic Study on Interface between Transverse Rib of Geo-grid and Sand, JOURNAL OF TONGJI UNIVERSITY(NATURAL SCIENCE), 38(8): 1128-1134 (2010) [5] Katdare Amey, Choudhury Deepankar, Effect of Rayleigh Wave on Seismic Active Earth Pressure behind Retaining Wall, Disaster Advances, Vol.5(4):(2012)

Introduction Powder Metallurgy (PM) engineering starts to use a new possibility of design controlled by the new technologies, led by additive manufacturing (AM), ultrasonic-assisted compaction or/and sintering, severe plastic deformation (SPD) and it has a huge potential to disrupt current manufacturing process processing.
Mainly AM is to take care of a forum demonstrating the depth and breadth of the research and development activities through manufacturing technology which most describes that goal [1-4].
Critical to further advances in this topic, will be the systematic study of the influence of important AM variables.
Journal of Materials Engineering and Performance 23 (2014) 1917-1928, DOI: 10.1007/s11665-014-0958-z
Archives of Materials Science and Engineering 67 (2014) 84-92

Compression Deformation Behavior of AZ91D Magnesium Alloy at Elevated Temperature CHAI Yuesheng1,2* CHEN Yong-zhe1,2 LIU Wen-feng1,2 SUN Gang1,2 1 Shanxi Magnesium and Magnesium alloy Engineer Technology Research Center 2 School of Materials Scienceand Engineering, Taiyuan university of science and technology Taiyuan Shanxi China 030024 Cys5912@126.com, chenyz126@163.com, lwfyx@163.com, sxmagnesium@163.com Keywords: Magnesium alloy; Hot compression deformation; Deformation activation energy Abstract: Hot compression tests of AZ91D magnesium alloy were performed on Gleeble1500 ranging from 0.001 to 1 s-1 and deformation temperature ranging from 200 to 400℃.
Thus, it is viewed as the “one of the most promising structural engineering materials in the 21th century”[1-4].
In this work, it was investigated that the relationship of flow stress with the temperature and strain rate of AZ91D magnesium alloys under hot compression conditions, as is to provide the experimental date for the advancing plastic processing of magnesium alloys. 2 Experimental The chemical composition of experimental materials is shown in Table 1.
Material Science forum,2000,350/351:159-170

Cost Effective Forging of Titanium Alloy Parts and their Mechanical Properties GABBITAS Briana *, YANG Feib, RAYNOVA Stellac and JIA Mingtud Waikato Centre for Advanced Materials, School of Engineering, The University of Waikato, Hamilton, New Zealand abriang@waikato.ac.nz, bfyang@waikato.ac.nz, cstiliana@waikato.ac.nz, dmj57@waikato.ac.nz Keywords: Powder compact forging, induction sintering, thermomechanical powder consolidation, microstructure, tensile properties Abstract.
Froes, Titanium Powder Metallurgy: A Review-Part 1, Advanced Materials and Processes, 170 (2012) 16-22
[6] Cost-Affordable Titanium III, Key Engineering Materials, 436, 2010
Nadakuduru, Tensile Properties and Fracture Behaviour of Induction Sintered Ti and Ti-6Al-4V (wt%) Powder Compacts, Advanced Materials Research, 275 (2011) 196-199
Blue, J. williams, Current Status of Ti PM, Opportunities and Challenges, Key Engineering Materials, 520 (2012) 1-7.

The porosity (void caused by technological reasons) in engineering materials always decrease their mechanical characteristics and usually affects the deterioration of the functional mechanical characteristics of the finished products.
Previous tests elaborated by the authors [2,18] show that such „hydrogen” models are represented in other systems such as Calcosoft Porosity and Procast Advance Porosity Module.
Popielarski: Archives of Foundry Engineering Vol.13 (2013), p. 45
Prunier: Defect Dif Forum Vols. 326-328 (2012), p. 612
Popielarski: Defect and Diffusion Forum Vols. 334-335 (2013), p. 314

Introduction In recent years, along with the comprehensive application of computer graphics, computer engineering and pattern recognition etc., research on reverse engineering, intelligent robot and digital terrain etc. fields has gained further development.
In reverse engineering, the geometry data of complex parts are mainly acquired by 3D laser scan technology, and the data acquired in the beginning are scatted point cloud.
Such method relates point cloud processing with engineering calculation, but the selection of initial surface is not easy.
Wei: Point Cloud Data Acquisition Based on Reverse Engineering Technology.
Computer Graphics Forum, Vol. 26, No. 2, 2007, pp. 214-226

FEM Analysis of the Skin Contamination Behavior in the Extrusion of a AA6082 Profile Marco Negozio1,a*, Riccardo Pelaccia2,b, Lorenzo Donati1,c and Barbara Reggiani2,d 1*DIN- Department of Industrial Engineering, University of Bologna, Viale Risorgimento 2, 40136, Bologna, Italy 2DISMI- Department of Sciences of Methods for Engineering, University of Modena and Reggio Emilia, Viale Amendola 2, 42124, Reggio Emilia, Italy amarco.negozio2@unibo.it, briccardo.pelaccia@unimore.it, cl.donati@unibo.it, dbarbara.reggiani@unimore.it Keywords: skin contamination, back-end defect, FEM, Qform, extrusion Abstract.
As shown in Fig. 1, during the process stroke, the skin volume (red in the figure) accumulates near the ram in relation to the high friction factor with the container and, as the former advances, it flows towards the centre of the billet and the extrusion die.
Hirsch, Automotive trends in aluminium - The European perspective, Materials Forum. 28(3) (2004) 15–23
Buchmayr, Finite element method simulation of internal defects in billet-to-billet extrusion, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 224 (2010) 1029-1042

Annealing Time Influence on Optical Characteristic of beta-FeSi2 Thin Film Xicheng Xiong a, Shuangshuang Kang b , Qian Chen c , Jin Huang d , Quan Xie* e and Jinmin Zhangf Institute of Advanced Optoelectronic Materials and Technology, College of Big Data and Information Engineering, Guizhou University, Guiyang City, Guizhou Province, 550025, China agoodxinan@126.com, bkangya1989.home@163.com, cChenzhangqianer@163.com, dmp3huang@126.com, eqxie@gzu.edu.cn, fjmzhang@gzu.edu.cn Keywords: Beta-FeSi2, Thin Film, Annealing Time, Influence, Optical Characteristic.
The samples have been measured by X-ray diffraction (XRD) (D8 Advance, Bruker Axs), optical digital microscope (ODM) (VK-X100/X200,Keyence), spectrophotometer (ultraviolet/visible /near infrared, U-4100, Hitachi), scanning electron microscope (SEM) (S4800, Hitachi), and then the data from the testing process have been compared.
Wang, Preparation of the Kondo insulators FeSi by magnetron sputtering, Materials Science Forum. 663-665(2011)1129-1132

Murch 1, b 1 Diffusion in Solids Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia a Irina.Belova@newcastle.edu.au, b Graeme.Murch@newcastle.edu.au, Keywords: Diffusion, Monte Carlo, grain boundary, composites, thermal conductivity, segregation Abstract.
In the simplest algorithm for diffusion in the lattice model, each attempt to jump by a randomly chosen particle simply advances the 'clock' by one time step but various straightforward 'siteresidence time' algorithms have been advanced that can be more efficient though there is inevitably some extra computational overhead when these are implemented.
Murch: Materials Science Forum in press (Proceedings of the International Conference on Diffusion in Solids and Liquids (DSL-2006), Aveiro, Portugal 2006