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This easily recyclable, low-density and good shaping material contributes to environmental conservation of automotive industry.
Torgeir, Application of numerical simulation in the bending of aluminium-alloy profiles, Journal of Materials Processing Technology, 58 (1996) 274-285
Bastard, On bend-stretch forming of aluminum extruded tubes I: experiments, International Journal of Mechanical Sciences, 43 (2001) 1283-1317
[4] MZ Li, YH Liu, SZ Su, GQ Li, Multi-point forming: a flexible manufacturing method for a 3-d surface sheet, Journal of Materials Processing Technology, 87 (1999) 277- 280
[8] CG Liu, Y Yao, YS Deng, XZ Li, Numerical Analysis for the Bending Process of Profile with Stiffener, Advanced Materials Research. 418 (2012) 1083-1086.

Application of MgO Concrete in China Dongfeng Arch Dam Foundation Changli Chen 1,a, Chengshu Tang 2 and Zhenhua Zhao1,b 1School of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, Guizhou, 550059, P.R.China 2Guizhou Wujiang Hydropower Development LTD, Guiyang, Guizhou, 550002, P.R.China a e-mail: ccl@gznu.edu.cn, b e-mail: jbhua@163.com Keywords: hydraulic building material; self-volume deformation of concrete; prototype observation; MgO concrete; technology of dam construction Abstract.
The amount of added MgO is 3.5%, and the amount of added MgO expansion agent is not included in the amount of cementing materials.
Acknowledgements: The paper is funded by National Natural Science Foundation of China (50969002) and Guizhou Natural Science Funds (QKHJ[2008]2053).
Journal of Hydroelectric Engineering.
New Materials.

These materials store charge through redox reaction, they also have difference between battery’ s electrode materials.
Energy Storage Materials 2019, 21, 439-445
P., Materials both Tough and Soft.
Journal of Polymer Science 1961, 50 (154), 511-539
Science China Materials 2018, 61 (2), 254-262

Effect of Fe2O3 on the Sintering Property of MgO-CaO Refractory Wendong Xuea, Xiaoxiao Huangb, Jiaming Guoc University of Science and Technology Beijing, Department Of Inorganic Materials, China axuewendong@ustb.edu.cn,bhuangxiaoxiao6868@163.com,cthepanguo@163.com Keywords: MgO; CaO;Ferric oxide; Sintering.
The increasing of the calcium oxide content has great impact on sintering property and hydration resistance of the materials.
Experimental Raw materials Fused magnesite, dolomite, and ferric oxide were used as main raw materials.
The chemical composition of the raw materials is shown in Table.1.
Journal of the European Ceramic Society, Vol.29(2009),p.581

To any material, damage equation is expressed as follows
(19) According to classic damage equation of material expressed in the following equation, (20) Where, both C and v are damage coefficient of material determined by creep testing.
Chinese journal of rock mechanics and engineering, Vol.23, No.4, 2004a, pp.614-619.
Norway Journal of Geology, Vol.84, 2004, pp. 67-88 [3] Eeginald L hermanns, Manfred R.
Beijing, Chinese Science Press, 2004b, pp.820-825 [8] LI Qing-fen.

The Forming Principle of Reflection Cracks of Composite Lay in old Bridge Reinforcement Daoming Zhang 1, 2, Xuedong Guo 2 and Mingliang Zhang2 1 School of Civil Engineering & Architecture, Jiangsu University of Science and Technology, Zhenjiang 212003 China 2 College of Transportation, Jilin University, Changchun 130025, China guoxd@jlu.edu.cn Keywords: Bridge reinforcement, Composite-slab,Shrinkage crack, Peak tensile stress.
The cracks had damaged the entirety of bridge pavement, hence the harmful material such as rain water was infused into these cracks, the destruction pavements were accelerated.
Journal of Southeast University(Natural Science Edition), Vol.37( 2007), p. 322-328,in Chinese [2] Jianguo Hou, Caixu He: Research on the mechanical behavior of interface of prestressed concrete composite slabs.
Journal of Wuhan University of Hydraulic and Electric Engineering, Vol. 26(1993), p. 73 -82,in Chinese [3] Byfied M P: Analysis of composite beams with widely shear connectors.
Journal of China & Foreign Highway, 27(2007), p. 149-152,in Chinese [7] Meng Chen: The Mechanical Analysis and Control on Shrinkage Cracking for Concrete Structure, D.Wuhan university of technology, 2006, p. 23-41,in Chinese

Based on the fluid-solid coupling in porous media theory, in this paper the relative reduction was proposed in the number of pores that pore radius is greater thanr under the The National Natural Science Foundation of China(50974028);Overseas Scholars Fund Project of Heilongjiang Province (1c2009c33).
The initial fractal dimension is 2.77, fractal coefficient is 106.0265, maxr is3.28µm, minr is 0.001µm, the initial porosity is 0.25, the initial penetration is 5.4mDc.Rock density is 2650kg/m3,elastic modulus is 26GPa, Poisson's ratio is0.25 rock, rock surface wave velocity is 1.04×105m/s, the rock material parameters 3m = ， K =16300,Thermal expansion coefficient is 5×10-5, the initial reservoir temperature is 338K, fracturing fluid temperature is 294K.
Experimental investigation on permeability evolution of brittle rock in failure process[J].Journal of northeastern University(Natural Science ),2003,24(10):974-97
[7] Yin Guangzhi Dai Gaofei Wan Ling, etal, Characteristics of bifurcation, chaos and self-organization of evolution of micro-cracks in rock[J] Chinese Journal of Rock mechanics and Engineering 2002,21（5）:635-639
Study on elastoplastic damage model of nsaturated rock mass and its application[J].Chinese Journal of Rock mechanics and Engineering 2008,7(4)728-735.

Drying Technology: an International Journal.
International Journal of Multiphase Flow.Vol. 26. 2000. pp.663-715
Chemical Engineering Science.
Progress in Energy and Combustion Science.
International Journal of Multiphase Flow.

Studied on Interaction Between ADN and (NC+NG) by TG Technology REN Xiaoning1,2 SHAO Yinhui1 ZHANG Gao1 ZHAO Fenqi1,2 LIU Ziru1,2 XU Ruoqian1 HENG Shuyun1,2 address: 1 Xi’an modern Chemistry Research Institute 2 Nation Key Laboratory of Science and Technology on Combustion and Explosion, Xi’an 710065, P.R.
Journal of Solid Rocket Technology, 2001，24 (2):41-53
R., Chinese Journal Of Explosives & Propellants, 1998(2)：27-30
[3] Liu, Y, New application of thermal analysis technique on investigation of energetic material decomposition chemistry, Beijing: Chinese Arms Science Institute, 2003
Chinese Journal of Energetic Materials, 2008, 16(2):225-228

National Science Foundation (NSF) supported the research of virtual machine tool.
Material Removal.
The material removal is realized by the Boolean operation between the workpiece and grinding wheel.
DeVor: Journal of Manufacturing Science and Engineering Vol. 119 (1997), p. 655-661 [3] Chi-Ho Yeungm, Y.
Kim, et al: International Journal of Advanced Manufacturing Technology Vol. 28 (2006), p. 101-108 [6] Deviprasad.